Scrollable x-axis on child tables

Is your feature request related to a problem? Please describe.
Currently, child table grid view can only accommodate 11 columns. And we can’t allocate float values to column width(bootstrap issues); thereby limiting number of columns in grid view to 5 columns or 6 at maximum.
Clicking Edit button to input values defeats the purpose of using Tab key.
Tab key is one of the things people love about Tally, you can literally do everything with the keyboard itself.

Describe the solution you’d like
If we add scroll-able x-axis on the child table, we can use Tab key to easily switch between fields and input all the required fields easily.

Additional context

Please state your opinions here and on the below mentioned GitHub issue to get developer attention. Also, please upvote/downvote the issue there. Thank you.