Multiple users for one translation memory

Hi,

I have a question about multiple users using a single translation memory.

I work in a company that has a small in-house translation unit. We have a translation project manager who has a TM on her laptop (local file). Everytime she creates a project, she adds this TM to the project and sends the project to us. When she does this, a project-based TM is automatically created by Trados, and this does not displaymatches when I try using the Concordance search (F3). is this normal? We don't have an internal server for the moment where we can keep this TM. 

Is there a way to solve this issue, considering we don't have GroupShare as of now?

Thank you,

Swathi