Can't change settings

[JawnRO]

Newbie here, so when I go into "inputs" to change settings it turns blue and won't allow me to change anything. Am I doing something wrong or in the wrong place for settings changes? Any help would be greatly appreciated, TIA JawnRO

 

[Tjabaha]

And did you doubble click on the value that you want to change?

 

[JawnRO]

Thank you! That was it..