[Rwp] Effect chaining

[Tayeb Meftah]

hi guys
i'm quickly getting started with reaper happyly
what i want is to pass a effect to another effect chain befaure aplying it to a particular track
example:
do a delay to track 1
but befaure aplying the delay, pass the delay result itself through a stereo widener or a reverb or something
is that pocible?
another thing
is it pocible to group tracks and aply the effect to the mix rather thant particular track?
thanks!