Custom

Tag Type C++ code (built in to libHForm/scan_body.cc)
Attributes var=show_xxx A temporary name of a variable to store whether or not to show the current {Custom} ... {/Custom} section.
Contained Tags None.
Related Tags Custom is similar to If except that they are not nestable, and that they are shown anyway, if the special variable "_customize" is true.
Comments The following example generates a display with three option menus. The user can press the "Customize" button and use checkboxes beside each line to show/hide any combination of the three. By unchecking any of the widgets, they will no longer appear on the form, but the user's last setting for the variable that the hidden menu controls will be preserved as long as the variable is declared in the Public section.