Custom Resolution Utility (CRU)

[Adenis]

Hi there, new to CRU but I managed to overclock my monitor up to 70hz, i have a problem though, i play CSGO and sometimes I like to use 1280x960 stretched but it's 60hz and on CRU at established resolutions I only see 1024x768 (60, 70, 75hz) and 1280x1024 (only 75hz) but i don't see 1280x960, do i have to add it manually on detailed resolutions and overclock it to 70hz or is it not available at all?

Also as i mentioned 1280x1024 is 75hz can i make it be 70hz instead?

Sorry if this is a weird question but i don't know a lot about this kind of stuff and decided to ask before i take any further steps.