To use LSGoto first copy the file nlsgoto.dll into your Notes executable directory.
Then add the following line to your notes.ini:
	EXTMGR_ADDINS=lsgoto
If you already have an EXTMGR_ADDINS= line then add lsgoto to the end of the existing line:
	EXTMGR_ADDINS=otherthing1,otherthing2,lsgoto


Then restart Notes and next time you are in a LotusScript edit window in Designer, 
you can press CTRL+G to activate LSGoto.