(in multibit classic)

the slider can be set between
0.00001000 and 0.00050000 BTC per KB

If I understand this correctly https://bitcoinfees.21.co/ https://bitcoinfees.github.io/

then it would make sense to allow up to >200.000 Satoshi per KB - right?

That means the slider should go up to 0.00210 - right?

Please add that TODO for a future update, thanks a lot.