Up/Down keys are interpreted differently from the Numpad Up/Down - please make it the same!
When you use the keyboard up and down keys in the value fields of an effect, you change the value by 1. shift-up/down changes it by 10.
On the numpad up/down keys this doesnt work.
Please make the numpad up/down work the same way the regular up/down work.
Gammel Sami commented
Workaround: Install Autohotkey and create & run an .ahk file that remaps your numpad up & down keys to normal up & down keys.
Paste this into your .ahk file: