It would be nice to add or change current keyboard shortcut to any existing software, so user feel no difference when switching from one software to another.

For example, using Ctrl+PgUp/PgDn to switch between tabs. This has been used by MS Excel, or browser like Firefox or Chrome. In GNUCash, we use Ctrl+Alt+PgUp/PgDn, which differ in one key (Alt).

Another example in Excel, Ctrl+Home to go to top row / earliest transaction.

I guess this additional feature can give more values for user experience and productivity to GNUCash .