Just don't separate them with empty lines.
Works for me in Sybase.
Alexandre Peshansky, MS
Senior Bioinformatics Analyst, Research Informatics Core (RIC)
Einstein-Montefiore Institute for Clinical and Translational Research (ICTR)
Albert Einstein College of Medicine
1300 Morris Park Ave, Mazer Bldg., Rm 534 Bronx, NY 10461
(718) 430-2440 (Mo, Tu, Th, Fr)  (718) 920-4885 (We)

From: David Gardner [david@freezingcode.com]
Sent: Thursday, July 31, 2014 3:08 PM
To: squirrel-sql-users
Subject: [Squirrel-sql-users] How to Run Whole Script at Once?

To Run a whole script/page of several queries...
Currently I'm doing a Select All, then a Ctrl - Enter.

Surely there's a single command/shortcut I could use?

Tried looking in Help and online, but no luck.