I dont recommend keeping in entrance and any patron content. (unless its been in a public build before.) because if you add in patron content and keep it in it can get you in serious trouble with the PT community (Im a patron player myself) And if you do add more patron levels its still technailly leaking patron content. (even if its old versions of the levels) but you dont have to listen to me just my opinion.

Well, you can techinally access the patreon levels with UTMT, but the other levels, like desert, factory, sewer, etc. are not patreon since the levels have been majorly overhauled