Nav_generate only generates navigational mesh for one stage on Payload

Hello. As the name implies, using nav_generate only gives me a working nav mesh for stage 1 of a 3 stage payload map I am making. Is it necessary for me to manually edit and update the navigational mesh for all 3 stages just in order to get bots to work past the first stage? If so, are there any decent, reasonable workarounds for this? It seems very unreasonable to be forced to manually edit the nav mesh for each stage after every time I update the map, and it will be extremely hindering to development. Apologies if this has been asked a million times in the past, but Google, as well as the search on this website, came up as empty for me. Thanks in advance.

 

nav_mark_walkable will manually select a part of the map (whatever surface you are aiming at) to generate navigation meshes from. Using nav_generate_incremental will then generate a mesh out from the parts marked as walkable into the surrounding area. You'll need to do this once for each area of the map that isn't automatically generated by nav_generate.