Provide "My Flight Plans" database for world map and mods

I’d like functionality in the sim to manage a list of my saved flight plans.

The plans should be available to choose from on world map as well as available to mods.

Scenario: Fly a KDEN > KSEA > KPDX with minimal manual waypoint entry.

Current behavior, option A:

Import KDENKSEA.pln on world map. Spawn Denver, fly Seattle.
Manually clear flight plan and enter waypoints for KSEA>KPDX.

Current behavior, option B:

Import KDENKSEA.pln on world map. Spawn Denver, fly Seattle.
End flight.
Import KSEAKPDX.pln on world map. Spawn Seattle, fly Portland.

Desired behavior:

Spawn KPDX ramp with no destination set.
Using my Garmin/FMC, navigate to stored flightplans.
Select KPDXKSEA. Fly Seattle.
Using my Garmin/FMC, navigate to stored flightplans.
Select KSEAKPDX. Fly Portland.

Similar to:
Favorite Flights Menu (which is asking for world map only)
Loading flight plan with virtual SD Card (which is asking to load files from disk on click while in-sim)
Remember departure, route, arrival settings from last flight

Is simbrief a valid option?
I know that it’s external but you can create and save virtual unlimited flightplans and load them into the sim as required.