A few days back I had posted - " After update 0155 you can have the image go off the mat and it will also cut that way, but the maximum image size is still limited by the mat. "
It is true. But forgot to add this piece - Say you choose mat size 12 x 12 and image increases to only so much and you want it a little bit more.You can then choose 12 x 24 and then increase the image size as then the delimit will be 12 x 24. Then you go back to 12 x 12 and you will have the image - though part of it will be cut off. But sometimes that is precisely what you want - some piece cut off but still large as you can have it - then this is the way to go about it.