Oracle SQL Developer to Connect to Sybase

Tried SQL Developer to access a Sybase database for the first time today. All  I had to do was go to Tools | Preferences | Third Party JDBC Drivers and add my jTDS driver. After that just configured a connection to use this driver and I was in. This worked fine for qerying data and viewing stored procedures, etc. I was not able to edit the stored procedures with a stored procedure editor.