We use PNC Bank. When I logged into "PNC Online Banking" the first time I set up the procedure (one time) for adding funds to our TCS Account. Now when I log on, I simply click on "Pay Bills" tab and up pops the previously set up TCS account. I simply enter a dollar amount and the date to transfer that amount. Hit "Enter" and I am finished.
You may want to work with your bank to set up this type of transfer so you can just enter an amount/date and hit "Enter" to complete the transfer.