word breaks are in really stupid locations for CamelCase words

Instead of breaking at the word breaks in a CamelCase word, MS Word wants to put in breaks in really stupid locations - not even where the breaks are in the words if they were standalone. Under the layout ribbon there's a "hyphenation" button, and under "manual" you can pick a break point, but you can only pick from it's stupid options. You can't tell it some are bad or insert new ones. For example look at

GeneOrGeneProductOrVariant

you get breaks in these locations:

Ge-neOrGenePro-duc-tOrVar-i-ant.

The only other options I see in the hyphenation menu appears to turn it off globally for the document?

You can manually insert hyphenation hints with Ctrl - (Control hyphen) at suitable points. If a word contains sufficiently many hints, Word applies only those hyphenation opportunities, both when hyphenation has been set to automatic and when it has been set to manual.

The downside is that this needs to be done for every occurrence of the word. However, the hyphenation hints are preserved if you copy and paste texts.

Caveat: Word internally uses a control character as the hyphenation hint (not the Unicode soft hyphen U++00AD character). This may cause problems when text is copied from Word to other programs.

It look like you can set a specific word to not get hyphenated:

Manually: Select the word and go to Review | Language | Language and check the box for "Do not check spelling or grammar."

From here.