I have read your fixture's manual but I did not find any dmx charts. So let's suppose it's 4 channels for each channel dimmer and one last for strobe. (DDDDS).
The main problem is that Cuety do not manage subfixtures ( fixtures that are divided into smaller fixtures) like the one you want to use ( each dimmer is a subfixture). SO even if i create a fixture file for it you will not be able to patch it un cuety.
The good news is that there is a turn around!
In the patch screen of cuety select 3 empty spaces and in the library select "generic" manufacturer and then "Dimmer 01x " in the model list. Then select 1 empty space and in the 'generic" folder select "fazer", set the "fazer adresse to your fixture address + 3 :exemple if your fixture address is 1 set the fazer to 4.
So now you have 4 fixtures in cuety, each once for each dimmer channel of your fixture and on the last one ( the fazer) you can control the strobe function from the custom fader.
I hope this will help you,
Enjoy