Happy to oblige. Open the config file AX.cfg in the program folder. The relevant section of the file looks like this:

(; -------------------------------------------------------------------
; CHARACTER CYCLE SETS
; -------------------------------------------------------------------
; This is a library of possible cycles
; <Set_name>=<character cycles>
; • Each cycle MUST finish with the start character
; • If you add sets you think might be useful to others
;   feel free to email [email protected]
; -------------------------------------------------------------------
Catalan=aàa AÀA cçc CÇC eéèe EÉÈE iíi IÍI oóòo OÓÒO uúüu UÚÜU
Danish=aåæa AÅÆA oøo OØO
Estonian=aäa AÄA oöõo OÖÕO sšs SŠS uüu UÜU zžz ZŽZ
Finnish=aäa AÄA oöo OÖO uüu UÜU
French=aàâäa AÀÂÄA cçc CÇC eéèêëe EÉÊÈËE iîïi IÎÏI oôo OÔO uûùüu UÛÙÜU
French1=aàâäæa AÀÂÄÆA cçc CÇC eéèêëe EÉÊÈËE iîïi IÎÏI oôöœo OÔÖŒO uûùüu UÛÙÜU
German=BßB aäa AÄA eée EÉE oöo OÖO uüu UÜU
Icelandic=aáåæa AÁÅÆA dðd DÐD iíi IÍI oóöo OÓÖO pþp PÞP uúµu UÚU yýy YÝY
Italian=aáa AÁA eéèe EÉÈE iíìi IÍÌI oòo OÒO uùu UÙU
Portuguese=aáâàãa AÁÂÀÃA cçc CÇC eéêe EÉÊE iíi IÍI oóôõo OÓÔÕO uúu UÚU
Russian=a??a A??A b?b B?B G?G g?g D?D d?d E???E e???e F?F f?f I???I i???i K??K k??k L?L l?l M?M m?m N?N n?n O?O o?o P?P p?p R?R r?r S???S s???s T??T t??t V?V v?v U??U u??u Z??Z z??z C?C c?c Y??Y y??y
Spanish=aáa AÁA eée EÉE ií¡i IÍI oóo OÓO uúüu UÚÜU ?¿? nñn NÑN
Swedish=aåäa AÅÄA oöo OÖO
Turkish=aâa AÂA cçc CÇC ggg GGG iiîi IIÎI oöo OÖO sss SSS uüûu UÜÛU
Math=2²2 3³3 o°o /÷/ +±+ *×* uµu
Symbol=£€£ $¢$ c©c .•…. <«< >»>
Custom=aàáâäåa AÀÁÂÄÅA BßB cçc CÇC eéèêëe EÉÊÈËE iîïíìi IÎÏÍÌI nñn oôöòo OÔÖÒO uûùúüu UÛÙÜU ?¿?
; -------------------------------------------------------------------
; DEFAULT SETS
; -------------------------------------------------------------------
; Provide a list of set names seperated by commas
; • Order may be important.  Early cycles will mask later ones
; • See AX_ReadMe.txt for how to override this using a shortcut
; -------------------------------------------------------------------
SETSen=Custom,Math,Symbol
SETSfr=French1
SETSde=German

In the top section (CHARACTER CYCLE SETS) you add a line with your custom set, placing each character set in the order through which you want them to cycle. NB: you must end each character cycle with the original character, e.g. the "a" cycle must begin and end with the plain "a" character.

Then in the next section (DEFAULT SETS), you change the entry "SETSen" or "SETSfr" or "SETSde" to reflect your custom set, as I have done in the example. Which you change depends on whether you originally installed it as using the English, French or German set. If you can't remember I guess just change all three! Any more questions, just ask.

http://vulpeculox.net/ax/

for English keyboards I believe, not sure

-cmpm (December 18, 2010, 08:56 AM)

- for any keyboard, I believe. And surprisingly easy to use

-Curt (December 18, 2010, 06:07 PM)

I've been playing around with AX and the best thing about it is that you can create a custom set of changes that make the program do exactly what you want. By default it works in a single language of your choice, but with a custom set you can cover multiple languages. My set currently looks like this:

Custom=aàáâäåa AÀÁÂÄÅA BßB cçc CÇC eéèêëe EÉÊÈËE iîïíìi IÎÏÍÌI nñn oôöòo OÔÖÒO uûùúüu UÛÙÜU ?¿?

When you type a letter and press F8, AX cycles through the options in the order you have chosen. I've used AHK for this kind of thing in the past, but AX actually makes this very easy and quick. Good find.