The High Color Toolbox tab in Options lets you drag and drop new icons to the toolbox.
The Toolbox is the main tool area on the left side of the workspace. Toolbars are slightly different but are related to the Toolbox. Toolbars are related sets of icons that can be docked to the Toolbox and also undocked into floating windows.
Adding New Icons to the Toolbox
To add a new icon to the Toolbox, to go Tools | Options | High Color Toolbox, pick an icon from the list and just drag and drop it on onto the Toolbox on the left of the window.
Deleting Icons from the Toolbox
To delete an icon from the Toolbox, right click on an icon while holding down Alt. It wll ask you to confirm deleting the icon.
Available Menu Commands For
This list includes all the menu commands in the programs that have high color icons defined, showing the icon, menu command and group assigned to it. Above this list is a drop down menu where you can select from the available icon configurations, which are defined by the High Color Toolbox Editor.
Group
You can assign this icon to a group by typing a name here. If you want to use the group name of an existing nearby icon, simply click on that other icon, then Alt Click on the new icon and that name will be copied to the newly selected icon.
Search
You can search for icons by name with this search box.
Rename group to
If you select one of the commands in the above list, you can rename the group assigned to that command, using this button and the text to the right.
Allow flyout to appear after a delay of ___ seconds
Use this checkbox to enable an automatic flyout mode, where you don't have to press the button to bring it up. With this unchecked, the seconds setting is used when pressing and holding the left button to bring up the flyout after the specified amount of seconds have passed.
Vertical Flyouts
Check this to have vertical flyouts with text. With this unchecked, the flyouts will be horizontal, without text.
Adding Icons to the Toolbox
To add icons to the toolbox, simply drag and drop them to the live toolbox in the workspace. A red dotted box will appear around the icon the new icon will be inserted before.