IB – list of funds you can invest in?

I am looking for a list of funds or etfs that you can invest in at IB.
At the moment I am looking for something fairly stable and liquid – like VMRXX (money market) or VUSB (short term bond).
It seems like I cant but VMRXX or VUSB. They system keeps blocking me / telling me I can't but those.
And rather than playing whack-a-mole I was wondering if there is a list of funds you CAN purchase.
They do not make it easy!

by Loveyourweenus