Sounds like you might have tried adding the ‘true’ to the maximize writable member and found that the pushbuttons no longer work. Most people would attempt this with something like ‘maximize= pb1 or true’. The reason this will not work is the value of the expression (pb1 or true) never changes – its forever true. If you embed a oneshot around the true keyword, the pushbutton functionality will still work. This would look like ‘maximize= pb1 or oneshot (true, 00:01)’. If you’re looking for a way to maximize at startup and also use the pushbutton, this will do the trick.