Is it possible to create a scheduler that show 2 or more days like the outlook calendar?
Yes, Here is a dojo that demonstrates what you are after. It extends the multi day view of the scheduler, and modifies the date range, and the nextDate and previousDate to get only the days we want, and navigate correctly.
This is a modified version of their demo showing how to create custom views by extending existing views: Create Custom Views By Inheriting Built-In Views
You can modifity the calculateDateRange of the custom view to suit your needs.
Oh, that's pretty much it.
Thanks for the dojo and link to the document.