[Niko_boy]

Plugins are scripted in C++ / VB languages they are more advanced than Pawno scripting so u need to learn that scripting languages to Edit them

or if u mean here Update plugin i.e. addin new version just downlaod plugin copy it in plugin folder the .dll and .so and .inc in pawno > includes folder
then in server.cfg
add like plugins streamer if its .so do plugins streamer.so