can i add more sprints or do pi planning for more than 1 PI using miro?

@sweaniv - Yes, you can. While it is not a simple as a process as it is when using the User Story Map or Kanban frameworks, with some practice in Miro--especially using Shortcuts and Hotkeys--you can do these sorts of things quite quickly.

In this example, I

PART 1 clip (I had to split the videos I made to get them to fit in my post)

1. Added the the PI Planning template to my board, I zoomed out so I could see and work with more at a time
2. Moved the Agenda and Program Backlog frames over - I used Shift + drag to select both frames at the same time and then dragged them out of the way
3. the I selected and dragged over the Program Board frame
4. Shift + drag to select all three of the extra blue, red, and yellow stickies to get them out of my way
5. made the Program Frame bigger by selecting it and then dragging from the corner
   PART 2
6. selected the Teams/Iterations stickies and Ungrouped them
7. selected the entire last iteration group of stickies
8. Did a copy/paste (Ctrl + C/Ctrl +V) to make a new iteration.

Here it is all is in order: