Hello,
As Joe mentioned previously you can click on the Insert tab then choose the Import Map option to bring in an MXD.
I am just getting to grips with ArcPro and have produced a Layout File (i.e. template) on the Share tab from within a project.
The issue I am having is, when importing the layout file, all the text boxes I have created are showing oversized in comparison to what I originally produced. I am also seeing varying extents across map frames (even though they are set at the same scale)!
If you have any suggestions I would be very grateful!
Jodie