Just a review of the procedure:
The DMP interface shows at the bottom left an option box for selecting data cartridges from 1 to 5 (there is no 0 available).
-Let's say that I select number 1 and I prepare a route (At least LS, B1 and L1 waypoints).
-Then I export it.
-Then, I load DCS, I join a server and I get an ASJ37 multiplayer slot.
-I start up the plane.
-After start up, I will have to load the data cartridge (physically) and enter 9099 in order to have the route loaded in the system.
-As you mentioned, by using LControl+LShift+C keybind while being in the cockpit you "Select Data Cartridge UP". For the opposite you use LControl+LShift+LAlt+C.
At this point some critical questions are arising:
a. [is there any indication or method, when in cockpit, to verify the selected data cartridge by the aforementioned keybindings? How many selections do I have? Five or more?]
b. When I will have to physically load the cartridge to the back of the left panel? Before selecting or after selecting a cartridge by the aforementioned keybindings?
c. When import function is used?
Many Thanks for your effort mate!!!!!!!!