You can try Tonto (it was an editor created by a Pronto user) or you have two options in PE


1)
a] take the CCF with device you want
b] copy the device (button or page)
c] click file open
d] pick your CCF
e] pick replace
f] paste the device

2)
a] take the CCF with the stuff you want
b] delete everything but the stuff you want
c] save this file (i.e. device X)
d] open your CCF (if not open already in an other instance of windows)
e] click file open
f] pick the file you saved in c]
g] pick merge

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these both sound more complicated then they are to do, each has a benefit depending on what you want to do