I never know what daz plan untill it will be released,
but I can confirm,, You can change default path to your volume, or your select HD,
(your daz contents folda) when you use the Install manager.
as you have done so.
about it do not worry^^
even though you may need to manually (simply copy and paste, or serch the directory from file window,
at first time, when use new installer, but after that,, installer can record user default locaiton .
or you may need not,, I think.. the installer may read .ini file, then auto applied default install path for each user.
(I hope so,, it is more useful,, and it is not difficult, at all to make so)
I am not programmer,, but it seems usuall . if the new installer can not change default location,
DAZ need to apologize every user,, who have changed default location.