Clicking the button Local variables opens the following dialog box allowing to select a local variable:
Shows all defined local variables.
If the parameter is checked, the local variables, visible in the current context (cursor position), will be shown in the list. It is necessary to execute the Syntax check (SHIFT + F8) for the correct functioning of the option.
Shows the list of all predefined local variables.
Shows all external local variables (picture local variables). The option is available for active pictures only.
Selected local variable is to be inserted on the current cursor position after
clicking the button OK.