@Mike2 I couldn't find that tutorial so here goes.
Sample work flow.

After set up click OK, at the bottom right select digital impression scan (this changes the order of the workflow steps slightly compared to two stone models in occlusion). Next click design and manually import the needed scans.

When manually importing scan data exocad will prompt you at the upper left corner with the needed scan.
Jaw scan is gingival scan.
I have the doc remove healing cap and scan the tissue area first before the tissue totally collapses.
I usually free form the scan data to clean it up slightly. I always make the tissue conform to the restoration so I start shaping it how I want it here.
It is easy to overdo this part so be conservative.
Scan body scan
Next would be to import the antagonist.
Once all the scans have been imported manually the next steps are as usual.
*When you select the library to mark the implant position it must be a library with an associated digital analog. If not, the steps to design the gingival mask
will not be available.* Maybe in Matera, but I haven't tried it yet.
Select your model type and be sure to give some extra room for the analog inside the bounding box.
Once the model stl files are rendered, select 'mask' in the wizard window and set your parameters for the gingival area.
Mark the gingival border and click Run to render the gingiva mask.
