Changing the Default Bank on All Vendors

When you go to set up the new bank simply check the default bank check box. It should prompt you to change all the vendors (that are currently setup with a the default bank ) to the new default bank. (so this will most likely hit all your vendors unless you have some "exception vendors" that don't use the default bank - if so, these may have to be changed manually)

Note one "trick" if you have "already" set the bank up as the default and forgot or were not ready to update all vendors at that time (and thus the check box is greyed out), you may  simply go back to the "original default bank" and temporarily make it the default again. Then go to the one in question (the one you really want as the default) and change it to the default and then answer yes to change all vendors. Orion will only allow you to have one default bank checked at any given time, so in order to change it and get prompted again you'd need to do steps mentioned.