Just so you know, you can embed multiple commands in one tex-tag. For example, take the list in your opening post [ tex ]\alpha \eta \beta \Phi \pi \omega \Omega[ /tex ] without the spaces gives:
\[\alpha \eta \beta \Phi \pi \omega \Omega\]
Also to help you, on the toolbar you can see the Tex-editor button - Ʃ - just press that and you can see all manner of advanced Tex options. Finally, have a look at thatoneguy's excellent tutorial to see some of the stuff you can do.