How should one distinguish the Personal Reccomendation and Special Interests Reccomendation?

Title.

They can overlap I suppose but a personal rec should emphasize the applicant’s character and the special interests rec should emphasize the applicant’s talent and dedication to that interest.

^^agreed
For example, I used my school dean of students who I knew well and my youth group letter.

My DS had his basketball coach do the special interest one and a favorite teacher from earlier in middle school do the personal one.

How are you approaching teachers who need to write and/or attach recommendations for schools who want their own teacher & special interest recommendations and not just the common app forms (Gateway/SAO).? They can fill out forms and attach to the downloaded forms?