I moved your question to the support forum where it belongs.
There is a tutorial on using the Insert Character Feature.
To repeat the same process on several fonts, after selecting the characters in the dialogue, copy the string of code-points to the clipboard and save it to a text file. Then click on OK to add the characters to the font.
Save the clipboard as a text file for later reuse, and paste it into the dialogue.
The Standard or Professional Editions have the Glyph Transform wizard, which can do a better job of this, by save the character list as a script. One can then insert the characters, and complete composites in a single operation.
