Protected Baseline & Timephased data issue

[Patrizio]

I have cleared the "Save Protected Baseline" authorization to the project
managers group on My Projects category.
Now project managers cannot save protected baseline, but cannot change
TIMEPHASED data on CURRENT values for BUDGET resources.
This is a big issue because project manager must change the current values
of the budget (but not the baseline).
Is there any way to fix this issue?
Many thanks,
Patrizio.

 

[Patrizio]

Has anyone tried to use protected baselines and timephased budgets before ?

thanks for any kind of help,
Patrizio.