How to Create Rotate Shortcut?

Hello to everyone

As someone who has used Modo for a long time and switched to Blender, I am trying to catch the speed of the Blenders Modo.

My question and what I am trying to do is; When the rotate command is activated, is it possible to rotate the Obj or Polygon that I selected with the shortcut keys I have assigned, in 90 ° or 45 ° X / Y / Z axes?

Thank you in advance for your reply.

You just press “r” then “x” and type in the number of degrees.