My guess is, that you've loaded the wrong character: Laura 3 PT or Laura 3 Blank instead of Laura 3. Laura 3 Blank has no morph channels, Laura 3 PT has morph channels in her head, but no morph channels in her Body actor. Both, Laura 3 PT and Laura 3 Blank, have no community channels, so trying to inject Melissa Blue won't work on these characters.

On the other hand, you shouldn't need any other DAZ morphs, if you try to inject Melissa Blue on the 'right' Laura 3 figure (the one with PBMCC), because Melissa has original/custom morph targets. They are injected by using some of the so called Community Channels (PBMCC).

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