# Finding information **URL:** \ **Category:** GNU Radio\ **Created:** [April 7, 2015, 10:42am UTC](https://www.ruby-forum.com/t/finding-information/241434 "2015-04-07T10:42:39Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![musicdenotation](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/ea666f/32.png) [@musicdenotation](https://www.ruby-forum.com/u/musicdenotation)\ **Post date:** [April 7, 2015, 10:42am UTC](https://www.ruby-forum.com/t/finding-information/241434/1 "2015-04-07T10:42:39Z")
Hi all, I am trying to add a block which does an extra clever work. This needs a sound knowledge on editing several subdirectories like swig, grc and cmakefiles.txt etc. as you have stated in the out of tree modules page. kindly share about where can I learn about editing them. Thanking you in advance. with regards _sudarshan kumar m p_ ---
**Author:** ![sudarshan\_kumar\_m\_p](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/a88e57/32.png) [@sudarshan\_kumar\_m\_p](https://www.ruby-forum.com/u/sudarshan_kumar_m_p)\ **Post date:** [April 7, 2015, 11:05am UTC](https://www.ruby-forum.com/t/finding-information/241434/2 "2015-04-07T11:05:30Z")
Hi Sudarshan, we’re not really hiding any information there – basically, the trick would be to look at other OOTs, experiment yourself and come here if any specific questions arise. However, “does an extra clever work” doesn’t really explain why you’d need to divert from the “standard” workflow as explained in the Guided Tutorials [1] – if you haven’t read those, I recommend doing that; it’s a quick and fun read if you already know half of the stuff in there, and it explains a lot about how things work together, so it might even answer your questions 🙂 Best regards, Marcus [1][https://gnuradio.org/redmine/projects/gnuradio/wiki/Guided\_Tutorials](https://gnuradio.org/redmine/projects/gnuradio/wiki/Guided_Tutorials)