How do I debug a Stored Procedure in a *.db2 file

Everything I've found is either so fricking old or is for PSL or Oracle.

Specifics. My stored procedure calls other stored procedures.

The debug on the menu is not self explanatory. IE "Not User Friendly" like it would be in "Visual Studio".

Well I figured part of it out:

Right click on the procedure:
Click "Compile SQL Procedure"
Click "Compile SQL Procedure With Debug"

The click "Debug"

Then I get the Parameters window:

The only problem is that "F7"( Step into) does not work
I know it fails inside the call on line 67. When I get that line and hit F7, it never goes into that Stored Procedure: