Hi @jonescm128,
Yes. You can. Just add them to your favourites. Not based on the criteria you are suggesting (such as the past month) because those will automatically appear in the recents.
Instead, you can add the notebooks to your favourites. Just open the notebook --> File --> Add to Favourites as shown below.

You can also go the Workspace and add folders/notebooks/SQL queries etc to the favourites as shown below.

They should then start appearing in your homepage favourites as shown below.

Is that what you are looking for?
If this answer resolves your question, could you mark it as โAccept as Solutionโ? That helps other users quickly find the correct fix.
Regards,
Ashwin | Delivery Solution Architect @ Databricks
Helping you build and scale the Data Intelligence Platform.
***Opinions are my own***