I tried by change name of load_plugin.rb to z_load_plugin.rb but it seems not solve my problem

Hi,
i read the debugger configuration of Rubymine from https://github.com/SketchUp/sketchup-ruby-api-tutorials/wiki/RubyMine%20Overview and succeed reproducing Rubymine debugger setup but there are still several problems :

1. Must i close and reopen SketchUp to rerun my plug-in script ? Once i created a script loader in Plugin Folder, it doesn't has much different between manually opening sketchup and debugging in Rubymine. I coded Ruby before but mostly by Native Ruby test case Notepad++ ,which has great automation for testing workflow so repeated open/close SketchUp is a bit uncomfortable for me.
2. i need one plugin loaded before while my load_plugin.rb for testing is always loaded before that plugin. If i try to run code in SkecthUp console (e.g. after required plugin loaded), the code runs well. But if i loaded my code remotely by load_plugin.rb, the code got broken. There is any way to control load order of plugin in Sketchup Plugin folder ?
   Thanks