You can copy a mesh from one simulation to another simulation. This mesh would then be used in a subsequent Solve or Simulate action. Note that it's always the most recent (and thus the largest) mesh that is copied. Simply choosefrom the target simulation's node Navigator context menu. Analyst will only show available and compatible simulations in this list. This action will create a new job and its log will indicate the copy is complete and include some details on the copied mesh (e.g. element count).