I assume you know how to move the .ady file from your iphone to the PC, if not see bel
Each time you click the box "Add", it would give you another box to enter the next frequency, I just did an example and below is the screenshot:
View attachment 40268
Moving the .ady file back and forth between your iphone and Google app.
I found the following method to move the .ady file from the iphone to the PC and from PC back to the iphone after you are done with the new target curve. You may know of other ways, I have not used an iphone for a couple years so I don't know any better.
docs.google.com
"Audyssey MultEQ Editor App / Ratbuddyssey FAQ & Tips
Page 8 of 2
Moving the .ADY files to and from Google Drive
If you want to move the files to and from cloud storage, either for manipulation via
Ratbudyssey or for storage, it can be confusing how to do this. Here is one method that worked
on an iPhone in November, 2019 via Google Drive:
To move the file from the MultEQ app on an iPhone to the Google Drive app.
1. Select the “” icon on the top.
2. Select the curve to send.
3. Select the “Send a Copy” option
4. Select the “Copy to Drive” option.
1. You may need to swipe to the left to see it.
2. If you don’t see it, select “More” and it should be in there.
To move the file from Google drive app on an iPhone to the MultEQ app.
1. Select the “…” icon to the right of the file.
2. Select the “open in” option; it will prepare to export the file.
3. Swipe to the right and Select “More”.
4. Select the “Copy to MultEQ” option.
5. The MultEQ app will launch and insert the calibration file.
6. Return to Google Drive, and select “Done”.
7. Select the “x” in the upper right corner to close the .ady file in Google Drive."
It is, as usual, easier with Android device because it would be just like copy a file from one drive to another.