Dear Mirela Popescu,
Thanks for posting in Microsoft community. We are glad to help you.
Based on your description, we understand your requirement to use the Add current selection to filter feature.
May I know if you are using Excel desktop application or Excel web version? To post a screenshot, use the Insert image tool:
Thanks for your understanding and cooperation! Hope you keep safe and healthy always.
Sincerely,
Sean | Microsoft Community Moderator