Try redownloading Kasteria OTBot and using LUA functions -> setlevelspy(number floor).
This sets level spy to a specific floor.
setlevelspy(number floor)
This sets level spy to current spying floor - 1
So you can easily create a new hotkey on Hotkeys tab, set hotkey "-" and use this code.
This sets level spy to current spying floor + 1.
So you can easily create a new hotkey on Hotkeys tab, set hotkey "+" and use this code.
To reset to your character's floor:
I recommend you to don't walk while using level spy, always reset before start walking.