Could use a little guidance on Page Designer
First off, it's amazing. 100%.
I'm a little confused by the tool, though. I'm in a multi-extension workspace that I have lots of pre-existing code in. I open a CustomerCard page extension object from one of them. I get the phenominal layout, overview, all that. I can see what fields are added by what extensions. Just. Wowsers.
But, I drag two fields onto the card, one a base and one an extension field. I drag around a few others. ... How do I save those changes without hitting "Run"? How do I decide which extension should hold that code?