ComboBox use

[Alexander Riedel]

PrimalForms CE was a thing more than a decade ago. It has long been discontinued, about ten years ago.
I have to assume you are talking about the free version since there is no product associated with your account.
It would be somewhat presumptuous to think we provide any support or material for that after this time,
nor is it feasible to assume this pre-cursor to PowerShell Studio provides all the features at your fingertips the current version provides.

PowerShell Studio does everything and so much more PrimalForms ever did, but of course that will required learning event driven programming for user interfaces.
Event handlers in PowerShell Studio can be added by simply right clicking on a control, which is not complex at all.

Thank you James, for trying to steer this in the right direction.