(1) Explain your problem, don't simply post "This isn't working". What were you doing when you faced the problem? What have you tried to resolve - did you look for a solution using "Search" ? Has it happened just once or several times?
(2) It's also good to get feedback when a solution is found, return to the original post to explain how it was resolved so that more people can also use the results.
The general rule is no retrospective changes to either the baseline or the progressed activities. The situation shown is what was current at the time.
My recommendation would be for any milestone that occured after the delay, but before the EOT was granted simply note that subsequently an EOT of XX days has been grated reducing / elimineting the delayed completion.
When you rebaseline the schedule, you can either insert activities at the pont of each delay with a duration equal to the approved EOT (of if the delay was general insert non-working days in the calendar). But this rebaselined schedule should only be used fo reporting going forward. The EOTs are not an excuse for recasting the schedule baseline without agreement from the client.
A lot depends on the terms of your contract.
For more on this see: https://mosaicprojects.com.au/PMKI-SCH-014.php#Process6