[TRMW]
hide_empty_buttons=0
normally specified in [TRMW] only.
If this option, introduced in 4.623, is set to 1, then if a button has neither a picture nor any text, then it is not drawn at all. Note that the user could in theory still click on the button, so you will normally want to ensure such buttons are also disabled. This option is intended for use by a specific customer and is unlikely to be useful generally, but may be useful where you have screens containing many buttons, which you change dynamically using show() functions.