This is not good, as we / our customer has made use of this feature, and the look and behavior of replacing it with a custom-field, has a much different design.
Se attached.
Right now they can not make new events using the "Tutor" field, and will have to change all with custom fields. (besides being positioned not the right place, also we need an option to reduce the space between the filedinfo and the text.. se att)
The custom fields in the future would of course be a good solution... if, one would have the option to position the fields the same place as "Tutor"
For our site, the Tutor field has been used to inform who is the speaker / lector for an event / lecture (in Danish "foredrag"

But .. What really are needed is a field placed like "Tutor" and WITH option to insert a link on the Tutor-(Lector / professor / singer) name and.. from here, with a link, ALSO we need somewhere where we can make a short CW about the Tutor.
Just like if you will have for the organizer (See attached). However, only few people are interested in hearing about the organizer, they would like to know details about the "band, professor, stand up comedian ore what ever.
But right now the removal of the Tutor is very bad.