If single door widths the problem to solve (ala most spec.houses), then
SOP = the segregated headers (Southpaws must have a huge header that spanned both doors = Rare indeed) would be replaced with a Heavy Expensive one (PSL or steel flitch) then expensive, odd-width door.
Tangent: some of the header trouble/$$$ above can be saved with a "sister" header + new 3" pipe column centered but this is RARE to expose the column & most will place a planter guard in front of it to avoid disasters.
Everyone brags about ONE door but few admit to banging each others car by opening doors when parking too close! Ask your insurance agent how frequent this has been!
If ONE remote is the problem, then EZ to program so both doors go up.
Gotta draw since me got no grammar MasterArch '76