Icon
Command
Collapse all: Allows to collapse all opened sub-folders.
Show search: A field appears to fill the beginning of a word to find it in the tree. The tree is automatically unrolled and the first matched word is highlighted. The 
icon allows to empty the field.
Show folders counts: Display the information counts found in the tree. When several parts have the same name (repeated), only one is displayed as a folder. 8754 (4) means that there are 4 parts named 8754.
Track entities: Allows to highlight in the tree, the selected part (in the graphic area).This mode is disabled by default.
Allows to display the sets list to be able to use them with a filter.(For example, hide all parts of the selected set).
Allows to display the functions list to be able to use them with a filter. (For example, hide all parts with a screw function).
Allows to divide vertically or horizontally the filters section. when the icon is on (orange background) it is the vertical division.
Check the different parts to show. Unchecked parts are hidden. This command has to be used part by part.
Allows to change the attributes (color, transparency, layer) part by part.
Allows to change the layer by modifying the attributes (color, transparency, layer) part by part.
Allows to show all parts.
Allows to hide all parts.
Allows to invert the visibility. Hidden parts become visible and vice-versa.
Allows to sort parts in ascending order.
Allows to sort parts in descending order.
Allows to display parts as hierarchical view or not.
Allows to display or not the table columns ( , , ).