Thanks for your answer.
My requirement is to implement a "timeline" scheduler, oriented horizontally, detailed to seconds. I need this because I must work with simple time frames (called "slots") whose duration will vary from some seconds (e.g. 5 secs) to several hours (e.g. 10 hours).
The user must be able to create these "slots", move them back and forward, delete them and perform some custom external action (by means of a context menu that shall appear when a slot is right-clicked).
I also need to have multiple lines (called "groups"), because the user shall be able to define new groups and, for each one of them, define a related "slots" planning.
Finally this timeline shall allow to be zoomed and also to be binded into a RadTimebar to have a global view of the "slots" planning.
Please, find attached a screenshot of a simplified version of the scheduler I need to implement (the values in the ruler refer to minute 8:00, 8:10, 8:20 and so on).