Requirement to Publish Zero Budget for Manager Level Budgeting - Percentage

Summary:

Hi Team,

We have a Requirement to Publish Zero Budget for Manager Level Budgeting - Percentage.

The admin will start the plan and publish zero or null budget and manager should be able to allocate budget based on their understanding to lower level managers

Is it feasible for  Manager Level Budgeting - Percentage?

If yes , Please provide your inputs

Note:- I have already made he budget percentage as 0 and published the plan. But the screen appears to be non editable.

PFB the screenshot

Also the hierarchy is not expanding and budget access level is not editable.

Am I missing anything?