In Abstract - Basic Setup there is a new checkbox "Sync Abstract Presentation".
When acitvated following will happen for abstracts and the created presentation which were connected via Program - Session manager.
1. Changed abstract title will also change the presentation title
2. Changed presentation title will also change the abstract title
3. Changed presenter of a presentation will also change the presenter of the abstract.
4.The presenter in the abstract can´t be changed anymore to prevent issues in the program planning.