Regarding the first part of your question which is related to calculating the total count of option values in different events, I do not think this is possible from the configuration of the program indicator side.
I think it’s similar to the below issue which was raised before could you please check and confirm if it’s the same issue as what you are experiencing?
In my example, I have a TEI called: Hello, with two events in one stage. In the first event I entered 4, and the last one I entered 5. Now you can se the last column is the program indicator. 4+5 = 9
In TEI: hehi I entered 6 in the first event and 3 in the last one: 3+6 = 9
For the event count, Ayman has described this for you, but if you only want to filter by events that has a particular data element entered, you need to filter by that data element…