ATM, when selecting a saved parameters, all values were overwrited - that could lead to data corruption.
Idea is to not update readonly parameters.
For testing, i add a AD_Tab_ID parameter to 'Create Fields' process.
Its default value is @AD_Tab_ID@ and its readonly logic is 1=1
Executing from BPartner window to register a saved parameter (with EE = iDempiere)
And then from Product, when selecting the saved param, EE become iDempiere but Tab remains as Product.