sdedit.ini window sizing

XPP 9.3.1/Red Hat Enterprise Linux Server release 6.10 (Santiago)

Is there a way to change window width(sdedit.ini)? Have tried adding 200x300 in front of the +25
i.e. Geometry=200x300+25+0
################################################################
# Sizing/Display information of the window.
# X,Y location of the top left corner of Sdedit
Geometry=+25+0