creo4 config.pro option documentation for: ENABLE_3DMODELSPACE_BROWSER_TAB 
prehighlight
yes
*
, no
Highlights selectable items beneath the pointer before selection. Prehighlighting provides a visual check to confirm that you will select the intended item.
Product">Creo
embedded browser.
yes
- Displays the 3DModelSpace
tab in the Creo
embedded browser when you open the embedded browser for the first time in each window.
no
- Displays the 3DModelSpace
tab only when you click 3DModelSpace
in Online Resources
.