Hey WobblyFootGamer!
We have posted the controls here on the information box (You can see them also in the options menu inside the game). If you press "E" the character will perform a windstrike, and you will be able to open doors, activate switches and solve puzzles. Tip: when you perform an omnidash, you are also performing a windstrike on the opposite direction of the player movement. If in the future you need to glide, use W ;)
Thanks for playing!