@User, load LACG.sch schematic in xschem, if you have already the raw file saved click the 'Waves' button ( top-right part of xschem window) to launch gaw, but to ensure gaw 'talks' to xschem, set the following line in ~/.gaw/gawrc:
up_listenPort = 2020
Next if yuo select a net in xschem (by clicking on it) you press 'Alt-g' to send it to gaw.