Form layout - column and row split

[SamWallis]

Several times now when designing forms, I have found myself wanting to fill additional unused space with larger inputs such as a multi-line text box, however as seen in the following example, this is not possible with the current row/column restrictions - 

Ideally I would request a CSS-Grid like implementation, but I suspect this diverges too much from the power user-friendly approach of PowerApps. Instead, I would suggest something along the lines of  'column split' and 'row split' buttons, which I have illustrated below -

This would enable much more dynamic form control overall, and could be hidden under the ellipsis easily.

Regarding interaction with the split within the field property control, I would suggest two nested lists under the new control, on which fields could be dragged from the parent list.

[SamWallis]

Bump, I'd love to see improvements like this starting to flow through. Canvas apps are feeling fairly stale right now as we've hit too many solution-breaking limitations along the way. 

[CathyL]

This would be so useful to me right now! I'm making a form to vote on a new name and want to display the options in 2 columns but it doesn't seem to be possible. The layouts of these apps are great, but too inflexible.

[aahmed-EVOL]

The Attachments field requires to span across two rows so this is definitely needed to make good looking forms.