Reusable content in different pages

Hello, I’m back at it.
Can you point me to the good direction, thanks. I have a page with multiples “course”, each courses has “pratical information”, and there are 3 differents model of “pratical information” depending the course. How to let the user choose the right model from an already established pool? Would it be possible to access those model from different pages too?
Maybe this is obvious, but for me it isn’t… Thank you

Depends on how you would like to store this information. You could use subpages of a page information, that store the different types of practical information. Then you could use a pages field in the course pages to select one of these pages.

An alternative would be to store this stuff in a structure field in the courses parent page, then query this information in a select field.

Thank you, I will experiment in those directions.