I could really do with string grids/tables or whatever they are called.
Like this from Visual basic:

I dont know if these are cross-platform but the gadget would need to be able to accept individual gadgets in each cell. Such as combo boxes, spinner gadgets *, formatted text, check boxes, and the likes. Sounds really complicated to implement though.
* Example of 'Spinner gadget':
Like this from Visual basic:

I dont know if these are cross-platform but the gadget would need to be able to accept individual gadgets in each cell. Such as combo boxes, spinner gadgets *, formatted text, check boxes, and the likes. Sounds really complicated to implement though.
* Example of 'Spinner gadget':