You can create temp variables in the Users collection if you are using them and add them on the Slider!
See this post by Victor :
I think you can’t set a input to the Slider. It needs a property.
The other way is to Create the record in that collection before going to the screen that Slider has and add the Update action on the button in that screen. And a delete action on the back button.
I am going to go the profile route (or at least a variation thereof)
Just to clarify : To add properties from the Users collection a Profile screen is not required! If you have a Signup screen to sign-up the user for the app then the slider will change that user’s property if there is a Profile screen or not!