Suikoden Style Party Changing system

[OmegaGroudon]

I need a Suikoden Style Party Changing system... It is something like you can recruit member.If your party is full, the member you recruit will head to a headquarter. In headquarter, there is a staff the control this party changing system. When you talk to him, it will ask you want to Remove or Add. When you click Remove, it'll ask you want to remove which character in your party except main character. When you click Add, it'll check whether your party is full or not, if full, it'll ask you to remove first. If not full, you can add the member you recruit. Hope this information will help!