Repeater Info please

["cameron street" <c.jas@optusnet.com.au>]

Howdy, i'm going buy a repeater soon, but i need to clear a few things up.

 

1.  The 3 button footswitch,  are the controls,   stop/play, record, and [taptempo],

or stop/play, record,  and [undo]?

Undo would be fabulous!

 

2.  Has the new downloadable software improved things,

Does the unit still have to be in the effects loop of an amp, [line level] 

to reduce the hiss?.