Upvote:1
Yes, it is absolutely normal for someone to pay for the travel of a spouse and not travel with them. It happens all the time.
The way to do this is for her, on the application, to state that you will be paying for all costs of the trip. Then you submit financial statements for both you. Hers will be minimal, but you should submit details of your finances to prove not only that you have the money, but that you in a good enough financial position that the trip being planned makes sense.
It is best not to transfer money to her account. You would need to explain the transfer, and that would probably involve you sharing your financial details anyway.