Please read the documentation here
http://docs.gantry.org/gantry5/configure/layout-manager
. This shows you how you can load a preset into layout manager that gives you similar positions to a Gantry 4 template.
You also mentioned in your other post that you are using Salient so i've done a screenshot for you of the presets available in Gantry 4.
Please remember though that Gantry 5 is not backwards compatible with Gantry 4 templates. So you may still need to add in other positions too.
Regards, Mark.