Can TypeTool change height of an existing font?

I designed a ttf font for musical notes using another system (FontStruct).
However, the other system does not handle the font height correctly (I was told it was a Java issue).
For a given font size, all the characters in my font display much larger than characters in system and other fonts.

Also, my characters have negative LSB, so they should overlap the previous character--that much seems to work in TypeTool.

I've never used TypeTool before, but
I can import the ttf font into TypeTool (demo) and see that the characters are bigger or smaller than the referece
characters in the gray boxes (not included in my font), and when displayed in Test.

Now, can I use TypeTool to adjust the height (larger/smaller) to match other fonts in the system, such as Courier New?
If so, how? Can I try it in demo?

Thanks for your help.