How can I package up cards from active and previous sprints into a release?

[Remone Giorgi]

Hi everyone

This is my first time attempting to create and manage a release. Tried youtube turorials and community boards but can't seem to find an answer

Background

- I have 3 concurrent sprints across my teams that have been running for a few weeks (each sprint is 2 weeks)

- I want to package up the work completed from previous (commpleted) sprints as well as current (active) sprint into a release

- I have a project admin role and have just created a release but all I was able to do is set a start and finish dates.

My question is how do I add cards (or can I) to this release from the different sprints?