The problem you want to ask is how to remove the quest required i will give you some tip generally you must try
1. You need to use REeditor to view mapslist.ini
2. Find the map you want to edit Each line theres a name Like [Sacred Gate Hole] and theres a name like this [w_out_school_01.Lev] "this is the example only this is not the exact name i guess"
3. You must need to use the compatible leveleditor to edit the .Lev file
4. Theres a page file on the right side Find the page name "Condition" you see that the requirements before you enter on the map you can put requirements on that.
5. You need to remove the Requirements for the map you want to edit then save
6. Explore more to know the use of LevEditor That's it.