How can I get subs to be exported?

I have dvdremake 363 and when I import a dvd I it shows three subs options I don’t touch them because I want them to be exported and then when I make my changes to the dvd elsewhere and hit export the dvd that gets exported doesn’t have the three sub options anymore. It’ll just have one. How can I export a dvd while still keeping all sub options?

Only way to do this is to demux PGC you want to work on, do your edit and remux it back with subs, than import that to Remake to keep rest of DVD structure.
Only problem is, if you do any cutting, than your subs will not match any more.