Bigger Maps

In minecraft I think we should be able to have WAY bigger amounts of space i'm talking about maps max level being level 6 not level 4 we need this added to see more on maps because I have the problem of needing more maps and not being able to and then needing 50 to find one area like a woodland mansion and with how rare they are we need to be able to make maps that can go above the level 4 limit