Unlike Poser, the DAZ Studio Morph loader can load the whole mesh at one go - and in the case of Genesis it must because the mesh all belongs to the root, the Body in Poser terms, rather than to the individual body parts.
Or do you mean you want to spawn a master dial from a series of other dials? In that case you want ERC Freeze… from the Property Editor’s menu - click the button in the top corner of the pane, or right-click on the pane’s tab. At the top you need to select
the bone with the control property
the control property itself
then in the bottom area you select all the properties you want slaved to the master property - if you had the figure set with just the things you want to control off their dfault values that should already be done.