Highlighting all occurances selected word

[GoogleCodeExporter]

I again!

Coult it be possible to mark all occurrences of a selected work using double 
click?

For example, imagine that I am using Seascope and I have a open project, and I 
have a open file. 

If I double-click a word, could it be posible to mark with the same color each 
same word in the file?

Geany (http://www.geany.org/) has this capability and is very very useful.

I do not know if I have explained myself correctly :-)

Thank you very much!

Jorge.

Original issue reported on code.google.com by [email protected] on 10 Jan 2012 at 1:43