Allow change of a schema using pgAdmin's GUI
That's something I wanted to do for quite some time, and Thom Brown beats me to it. He added a "Schema" combobox in each object that's part of a schema. For example, on a sequence, you'll get this:
Before this patch, the user needed to execute the "ALTER SEQUENCE... SET SCHEMA" in the query tool, switch back to the browser, and refresh it. Now, it only has to get into the properties dialog of the sequence, select the right schema in the combobox, and click on the "OK" button. Much simpler.
Of course, it works with all objects you can find in a schema.