NOOB Question

[MSNoob]

My job has recently replaced an Access application with Microstrategy. I cannot figure out how to use it like I used Access. I do a daily report that can have between 200 to 1000 members on it. I would use Access to get information on all of them at the same time so I would not have to look them up one by one. I would import the members into an Access table, then create a query linking my table to an existing table so I could pull data on my specific members. It saved me oodles of time. I cannot figure out how to do this in Microstrategy. There are existing reports that prompt by member number, which allows me to look them up one at a time, which is not what I am looking for. There is one report that prompts by date range which I can then filter by member number- is there a way to filter by more than one number? I have tried separating them with commas, spaces, and semi-colons but those do not return any results. I can import my data, but cannot figure out how to link my report to the existing one that prompts by member number so it pulls data for all of my members at once. Is there any way I can do this? Any assistance would be greatly appreciated. Thank you!