I’m trying to position an element. Specifically a stack component within a tabbed container. For some reason I can’t draw and drop the element. Its just there sitting at the bottom of the page. I tried asking AI to fix it but it can’t move it either. In general I’ve been having a lot of issues just positioning items on a page. The grouping and stacking components seem a bit buggy and dragging and dropping in the grid view also doesn’t work reliably. Specifically it seems that some of the components don’t support the flex box layout ie stack type layout. Here I have a tabbed container but I can’t access the tabbed container properties to change it into a stack. That would be the prefered method to edit these items by using the positioning tools instead of trying to drag stuff around.
Hello again @benjaminfortunato I wasn't able to reproduce the behavior you are seeing. I tried adding a Tabbed Container inside a Stack Component and was able to drag the Stack Component around my canvas. Can you please share a screen recording of what's happening on yours? 
This is what I have on my end:
Also, to answer your question: Retool's app canvas does not currently support typed position inputs. Canvas frames use a 12-column grid layout. As you arrange or resize components, the grid becomes visible and component edges snap into position. Read more in the docs here: App IDE | Retool Docs