Hi there!
What is the sense of (dcl_OptionList_SetButtonEnabled bst_Dialog1_Optionlist1 0 nil)?
To prevent the user to select this option, isn´t it?
In my case this particular option is getting gray, but is still availlable... very funny...
Am I doing something wrong???
That looks like a bug. I'll have a look to see if I can get it fixed.