Set floating point value between 0 and 1, which defines opacity level of an 'arch' object's preview (when 'arch' object is being created using LSS Arch tool or when existing 'arch' object is selected (picked) in LSS Arch tool's default mode).

It is possible to create copies array while dragging selected (picked) 'arch' object using a 'drag handle' displayed by LSS Arch tool. In case if this option is enable tool stores entered copies count during each tool session. So it may be useful when it is necessary to make several arrays of copies with the same copies count during one tool session.

This option allows to set the size of all LSS Arch tool dialogs according to screen resolution and to personal preferences. Small size saves more working space, standard size provides bigger (more readable) interface elements.

Each LSS Arch tool displays grips (handles) and so-called 'adjustment points' for direct manipulation of selected (picked) 'arch' object. It is possible to set size of these handles according to screen resolution and to personal preferences. Magnify factor 1 gives the size of a square handle of 10x10 pixels.

LSS Arch tool displays transition between old geometrical parameter and new entered one graphically as an animation. Besides it shows transition between one face/curve under cursor to another in 'pick face/curve' mode. It is possible to turn off this option in order to save system resources or due to personal preference.

It is possible to select an object using SketchUp's 'Select' tool before LSS Arch tool dialog opening. By default LSS Arch tool processes selected object on launch depending on its type:

• in case if selection contains an 'arch' object of a type corresponding to an opened tool type, 'arch' object become picked (selected) in a tool context
• in case if selection contains face or curve, tool picks selected face/curve and creates an 'arch' object using a contour of picked face/curve

When this option is enabled LSS Arch tool refreshes automatically calculated values ('Reporting' group of object's parameters) instantly during 'arch' object creation (during drawing of a contour). Such ongoing refreshing may slow down performance on weak machines, so it is possible to turn off this option in order to increase performance.

Enter integer value in pixels, which defines a distance between 'drag handle' and 'rotation handle'. This distance may become 'uncomfortably' small in case of big screen resolution. Or you may reduce/increase this distance according to personal preference.

By default this option is enabled so in case of 'arch' object erasing, when LSS Arch tool is active confirmation message box appears. Once you become comfortable with this feature it is possible to switch off confirmation message box popping. Confirmation prevents from accidental erasing, but it is also possible to undo accidental erasing so the way of accidental erasing preventing is a question of ones personal preference.

Initially after opening a tool dialog tool falls into 'default' state. So new object creation usage scenario after tool dialog opening is two staged: set new object's parameters at first, then click 'draw...' command button (or 'pick >>' command button) to start new object creation.
It is possible to enter 'contour drawing' state right after dialog opening or enter a tool state, which was active at tool dialog closing.

This option affects representation of selected (picked) 'arch' object in 'default' LSS Arch tool state. Initially LSS Arch tool hides picked 'arch' object in an active model and leaves only black wire-frame and semi-transparent body preview of an object. This feature makes editing of object's contour more comfortable.
It is possible to disable such behavior though by adjusting this option.

By default LSS Arch tool displays 'arch' object under creation or picked (selected) one as a semi-transparent body and a black wire-frame. It is possible to leave only black wire-frame by selecting 'wire' option of this setting.

By default LSS Arch tool creates 'arch' object right after finishing of its contour drawing or right after picking of a face/curve as a contour. But one may prefer to preview the result of finished contour and maybe re-adjust some parameters before actual object creation. So it is possible to switch off 'instant apply' option so tool will not generate actual 'arch' object instantly and it will be necessary to click 'Apply' command button to create an object after finishing its contour drawing or after picking of a face/curve, which represents object's contour.

Set desired label position. Available options are:

• center
• top-right
• bottom-right
• top-left
• bottom-left

Set desired Z-level of a label. Available options are:

• bottom
• center
• top

You should pay attention to this option in case of using horizontal section plane(s).

Set distance from label's 'anchor point', which was specified in 'label position' setting (top-right, top-left, center etc), to actual label's position.

Enable this option to attach labels automatically right after 'arch' object creation.

This option takes effect in case of picking a face or curve instead of drawing a contour of an 'arch' object vertex-by-vertex. In case of picking a curve, the whole side surface of an 'arch' object becomes smoothed and softened, when this option is enabled. Contour of picked face has to contain some curves (arc or freehand for example) in order for this option to take effect after picking a face.

When these options are checked (set to 'true'), LSS Arch tool softens/smooths side surface of newly created 'arch' object automatically depending on soft/smooth angle.

This option takes effect only when 'auto soft' and/or 'auto smooth' option is set to 'true'.
Set floating point value, which represents an angle between adjacent segments of 'arch' object's contour. When angle between contour segments is more than specified, LSS Arch tool softens and/or smooths corresponding edges of a side surface of an 'arch' object under creation.

When this option is checked, LSS Arch tool softens/smooths the whole side surface of an 'arch' object regardless of angles between adjacent contour segments or presence/absence of curved parts.

When this option is set to 'true', LSS Arch tool assigns the same material to faces, which represent 'arch' object body. It might be useful especially in case of zero thickness of created 'arch' object.

This option affects creation of 'arch' objects, which have circular shaped profile contour. After creation this setting becomes one of adjustable parameters of created 'arch' object. So it is possible to re-adjust this parameter of a certain existing 'arch' object using 'Properties' dialog.

This option affects creation of curved segments of newly created 'arch' objects. After creation this setting becomes one of adjustable parameters of created 'arch' object. So it is possible to re-adjust this parameter of a certain existing 'arch' object using 'Properties' dialog.

This option makes sense for such 'linear' object types as 'wall' or 'beam' in case if mentioned objects have non-closed contour.
When this option is set to 'true' LSS Arch tests if there is a face right near each end of an object and aligns each end to such face if any.
After object creation this option becomes a property of created object and can be re-adjusted using 'Properties' dialog. For example it is possible to switch off auto-alignment of end of some particular wall or beam in order to be able to adjust angle of ends manually.

This option affects 'Mesh' tool only when mesh body type is set to 'blob'. When this option is set to 'true', 'Mesh' tool displays additional surface, which is mapped (projected) from spherical coordinates to cartesian. Projection takes place from a 'south pole' point to a horizontal plane.

Mesh tool uses a value specified within this option in order to ensure that isolines/horizontals count lies within a reasonable range. The point is that isolines step can be set to a very low value by mistake so isolines count may become unreasonably high. That's why default limit is set to 50 so mesh tool will generate 50 isolines if isolines generation is enabled. It is possible to set another reasonable limit if necessary.

When this option is set to 'true' mesh tool evenly distributes isolines/horizontals in case if estimated isolines steps count exceeds isolines steps count limit. It means that isolines step of generated isolines becomes different from step specified within mesh tool settings. That's why it is necessary to use this option with precaution.
In case if option is disabled, mesh tool leaves initially specified isolines step and generates first lowest isolines within isolines steps count limit (which is more natural, that's why this option is disabled by default).

Such objects like wall, slab and slope have a level attribute and since version 1.4 it became possible to force tool to use level specified in a tool dialog while drawing a contour of an object. The default behavior is to use level of first entered point.