p = ProxySpace.new.push(s.boot);
// make some proxies
~out = { \in.ar(0!2) };
~osc = { SinOsc.ar(440).dup };
// map a proxy to an ar input
~osc <>> ~out;

// make p != currentEnvironment
p.pop;

// make a mixer: should show names of proxies within p
g = p.gui;

// send ~out to editGui: editGui name should show "out", 
// and editGui's first paramView should show "~osc" as mapped input
g.arGuis[1].edBut.valueAction_(1);

// add an ar proxy: name should be shown correctly in arGuis on the left
p[\test].ar; 

// add a control proxy: show show name in krGuis in the middle
p[\lfo] = { SinOsc.kr(3) }

// send p[\test] to editGui: name "test" should get shown correctly in editGui on the right
g.arGuis[2].edBut.valueAction_(1);

// p[\out] to editGui: paramGui should show param "in" as mapped "~osc"
g.arGuis[1].edBut.valueAction_(1);

// add second source osc2: name "osc2" should get shown in arGuis
p[\osc2] = { Pulse.ar(440).dup };

// map ~out param in to osc2: name "osc2" should get shown in editGui.paramViews
p[\osc2] <>> p[\out];