Find and Replace Text Symbol

Hello All!

I am trying to do a find and Replace Text and insert a Symbol from the Symbols dialog (i.e. U+0394 or U+03A9) Delta (triangle) or Ohm (Omega symbol)

How do I key-in the Symbol codes in the Find and Replace dialog or in the Text Editor - Word Pricessor dialog (other than picking from Symbol dialog)?

I am using V8i(Ss2). Any help is appreciated!