Planning on super projects

For some clients, especially in the maintenance area, we have many detailed subprojects, which makes planning very tedious. For example, someone is planned for 10 hours on a client, but it's not yet clear to which sub-budget the time will be allocated, as the tickets still need to be created or come from the client.

Therefore, it would be great if planning could also be done at the super-project level. Ideally, when entering time, the user would then be shown all subprojects available for booking.