(2020-08-31, 23:49)N. W. Perry Wrote: From the Session menu, choose "MPD main session" to go to the main model (or click the toolbar icon that looks like a row of houses). Then from the part bin, choose the Overview bin (the one that says MPD inside it) and go to File Content (again, the one that says MPD inside it). This will show all the submodels you have, including your shock absorber. You can now just drag it in to the main model, or click it and press Insert.
You can also press the END key when done working in a submodel, this will return you to the previous edtied model.
Once there you can use SHIFT+INS to insert the previous (now the shock) session's model into the current model.