I am using MasterDetailsBlock on my FormPage. I would like to adjust the screen width for the master and details part of the form. I had been searching around and haven't found a way to do it. The documentation seems to suggest it is doable through the SashForm, but I do not see how.
It will be great if I can use percentage ratio, like the FormAttachment style, but if that is not possible..I'm ok to fix the master and details to specific pixel also.