On-screen numeric keypad

I've got a Vision 8.1 application in which we use the on-screen keyboard for all clients (operator room stations with keyboard/mouse and industrial enclosures without these items). For components that bring up the alphanumeric keyboard, like the text field in our login pop-up, the physical keyboard is functional and can be used. However, when a component, such as the numeric text field, that brings up the on-screen numeric keypad only, the numeric keypad on the physical keyboard doesn't seem to be functional. Our customer would like this functionality, as their old SCADA worked in this fashion. Has anyone else seen this and have a solution to it?