Hi is their way way to untoggle all the buttons and mod settings for certain games?
If the question is about a toggle all button, there is not one 
Generally speaking, people need to enable certain cheats without enabling others that may cause issues. One solution I’ve seen for this is that people will set all of their “wanted” cheats to a single hot key so that one press enables the ones they use the most!
is their a way to reset all the buttons since I don’t remember the default game speed for certain games?
If I understand your question correctly, you’re asking if there’s a reset slider button? There is not. Generally game speed defaults will always be a value of 1 on the slider