need help with gamemodes

i have a server going (runs on my laptop so i can play on my pc) a binch of my friends play on it but we have a problem i need help with.

Some game modes i get don’t appear on vote list. What i mean is like at the end of some game modes, a voting for next gamemode happens. I cant see all of the game modes i want to run! And the games that arent on there dont have voting appear at the end of them. Is there any way to make it so i can vote for any game mode and at the end of that gamemode it starts the voting?

I really would appreciate the help!