Absolutely! You can use your group plan to save for all kinds of things, under certain conditions.
Buying your first home – You can help finance your home purchase through your:
Group RRSP as part of the Home Buyers' Plan
Group FHSA
Going back to school – You can use your group RRSP to help pay for your studies with the Lifelong Learning Plan (LLP).
For all your other goals like saving for a rainy day, going on vacation or doing renovations, you can use your group TFSA.
Before setting your savings goals, check to see if these plans are available with your employer's group retirement savings program.