How to select muliple row in timeline view ?

Hi,
I want to develop the scheduler same as outlook schedular. I want to select the mulitple row in timeine view. For example. At the left side I have 4 users. I know the 4 users free time on the timeline view. Now I want to create a meeting which select muliple rows for all 4 users.

So please help me out how to select multiple rows with multiple resources in timeline view.

Thanks,
Faiz

It is not possible to implement such use-case in existing version of scheduler. Currently only events which belong to one group are supported.