Hi @pantelis ,
I would refer back to a previous community post that is a similar scenario:
How to Display Dynamic Month in Table Title Using Parameters? - Q&A - Amazon Quick Community
Check this out and let me know if you have any questions. I believe this will get you most of the way there. The last three months instance might entail a slightly different solution, but try out the solution outlined in the past community post and we can go from there.