Forced Rebuild vs Save Mark (VBA)

I am working on a VBA Macro that cycle all the configuration in a file and set the add rebuild save mark as below.

I want to force rebuild every configuration AND create their display data as well.

'Check current configuration Mark
If swConfig.AddRebuildSaveMark = False Then

'Add Rebuild/Save Mark to each configuration
swConfig.AddRebuildSaveMark = True

End If

Question1:

For a single configuration file the save mark is apparently not available in the UI, but debugging the macro it seems to be applied via API to single configuration files as well. Is it the case?

Question2:

Could the rebuild save mark replace a forced rebuild?

Or to put in another way am I required to run ForceRebuild3 after AddRebuildSaveMark is set to True? Or a forced rebuild would be redundant / a waste of time?