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Share Role - If a PM does not have permission to schedule a resource due to the resource's cost center, the role can be shared to a cost center the PM does have permission for. For example, PM cannot schedule UK resources only US. A UK person goes in and shares the UK role with the US cost center. The PM can now schedule the resource. See Alien Resources.
When a project is opened in View Project Mode, you cannot request or book resources.
Hours must be entered in using multiples of the Scheduling the Scheduling Time Increment set in system settings.
You cannot view RDC information unless you have the global permission Resource Resource Direct Cost (RDC) Data set to View or Update.
If you have completely filled the scheduled hours grid, click the right arrow to add additional weeks.
Request / Book Workflow
The main purpose of the resource scheduling tab is to request or book resources. A full overview of this process is covered in our Scheduling Overview How-To. The basic idea goes like this:
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Auto-populate the cells by right clicking on a role and choosing Copy From.
Extend Schedule beyond grid
If you have completely filled the scheduled hours grid, click the right scroll arrow to add additional weeks.
Notes
Notes are used to convey information between requestors and schedulers. Notes can be added in two places. You can add notes by editing the role and selecting the Notes tab. Roles with a note display a 
icon.
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