hifi engine

can't adjust rear speakers without remote?

Is it true?

I have a Technics SAEX700, which is a 5.1 receiver.

I have no remote, and can live without it, except I can't adjust rear speakers volume except by remote. Am I missing something, or is that function really not possible from the front panel? Usually there are ways of doing all things from the front panel, even after the industrial designers have inflicted their own vanity on the product.

Is there any way to get a remote without $40 highway robbery? All I want is to turn up the surround channels.