It depends on what exactly you want, but nothing in your description says to me that you couldn't use those plugins.
You can replace the title screen with your own with those plugins, and that means you can select several game start options by show choice.
And when a choice is selected, in the branch of that answer, you can use any event command to change the actors, change the switches that may control the game behaviour and then tranfer to different starting positions on different maps...