Is there a way to set "max selected" for Col List Box when using Application Builder?

[#1]

I am trying to use the application builder to speed up my application development. Col List Box is a Display Box which I use quite frequently. However, I often want to restrict the number of items by "maxSelected". Unfortunately this is not listed as a property for Column List in the Application Builder an therefore I only get big unrestricted Col List Boxes. I also have not found any way to set maxSelected after the Col List Box is created, there seems to be no way to send such a message to Col List Box. Does anybody have an idea?

[#2]

Okay, I found a workaround myself. Save all stuff to script. Make the changes there. Start the script, which makes the application builder appear again, with the correct stuff now, and then save it as your application. Is of course a general way to change all kinds of boxes where you are missing options.