Set custom start date of resource schedular to allow scrolling back to resources in the past.

The resource scheduler automatically choses a startdate as range. 
For example on the first of june, the first of june is also the startdate of the resource scheduler range. 
This is very inconvenient, if you want to scroll back to a resource of yesterday or somewhere in may.
Than you first have to click the little left arrow.

Would be nice if either by default a peroid of the past is taken as range with the resource scheduler, or if the user could specify the startdate of the range.