Indexing again

I'm back to indexing again. Last night we ran into a problem. The book I'm currently working on uses many strange characters. Sky Index (the indexing software I use) has a character map which allows for rarely used characters to be accessed. However, I have not found a way to create some characters I need. Once I move the index over to Word, there is no problem. I'm guessing that what I will have to do is use a placeholder in Sky, and once I get my index moved to Word, then I can do a "find and replace" under the edit menu. At least, that's the only solution I see now.