Why is quick tax skipping my ability to enter T4, T4RSP, etc....?

In the left-side menu, click Profile > Personal tax profile. The What happened for you in 2014? screen appears.

Answer Yes to the first question (did you work in 2014?)

Select the T4 checkbox and the T4RS checkbox. Then in the Income section you'll be asked to enter the amounts.

what if I'm not going through the step-by-step process but going directly to the t-slips

it just gives me the T4 slip and I need the T4RSP Slip

@ggratton  Go to line 101 on the T1 general and double-click.  You can enter all T4 slips in that screen.
@cango_ca Go to the same line, double click, and choose T4RSP from the left side menu.