Viewing in GM / Saving in Photoshop

Thereandbackagain

I’m pretty new to global mapper,  the company I work for has us using it to review large Tif files and rectifying any topography errors in photoshop.     The issue I’m having is saving in photoshop requires me to close out of global mapper each time as the file is “in use” buy GM.    I had hoped using a map catalogue and zooming out till image data turned to grid would do it but I had no such luck.     

Does anyone know of any way to save in PS with out having to close the GM project each and every time, as closing and reloading just adds so much time?