Solved
Prehighlight selection issue
Struggling to keep option pre-selected on closing and reopening. Any ideas please. What file is this stored in when loading?

Struggling to keep option pre-selected on closing and reopening. Any ideas please. What file is this stored in when loading?

Add the following option to your config.pro file. Assign the value to yes if you want it on when launching Creo.
prehighlight to yes/no
If you are unfamiliar with config.pro files see this link.
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