Throttle/Brake Curve: edit first and last values

When I handover the Transmitter to a kid/beginner, I set TH Trim to lets say 50%, because cars should move slow. But I than have a problem with driving backwars. On my MJX 10208 it's set "Backward = 50% Forward", so a full trigger backwards with 50% TH Trim will result in a 25% backward. My Basher ESCs don't operate on these low voltages and the car doesn't drive backwards at all. My hope was, I could work around that issue while setting a funny Throttle/Brake Curve, where the negative values are linear to -100 and the positive values are linear to +50. But I found out, you can't edit the start and end position (marked red), they are always at -100 and 100 So I would descripe my whish as: Could you add two more fields in the GUI and let us **edit** the first value (lower left corner of diagram, -100) and last value (upper right corner of diagram, +100)  Great job though! Greetings from Germany, Gerrit (software engineer)