Question about FBD programming in Step 7

Hello, im pretty new to the FBD programming in the step 7 software and have a question for someone out there. I have a timer in a program that on the start timer input right now is looking at the correct symbol name but no the correct status of that. Right now it is looking for a 1 to start the timer and i need it to be looking for that to be a zero. Any help would be greatly appreciated. Pretty much i need it to be inverted of what it actuall is right now.

Thanks

Select the pin and press F9.

When i select the start timer imput pin and hit F9 it doesnt do anything

Circle means its inverted.

Like this:

Ok i understand now, thanks for your help seems to have done the trick.