You might be interested in these PCFs
Editable Sortable Subgrid
A control with inline editing, keyboard navigation, record actions, and row reordering.
RecordImage Cell Renderer
A control (generic Cell renderer) that works in conjunction with the Power Apps Grid Control
Conversation Control
A control that shows a list of Entities (SubGrid) in a user friendly conversation style.
CheckBox List
A control to replace a subgrid and show a list of records with an associated checkbox.

