How to add block to organize photos page

Does anyone know where to look to add another block on the organize photo's page?  I want to add a block with only text in it.  The attached picture shows where.  Since I can't find anything in the page builders, I'm assuming I have to edit some files directly. 

get deano's module for that... so easy.

http://www.boonex.com/m/Block_Tools

I don't think Block Tools can access that page.