WIA Automation

Hello everyone

I create a "facepleate" in a way that i found in classic Win CC:

Acording to a DB located in PLC i create my own data type, than I add my own data type in a default tag table and name it (for example: MOTOR_1), after that i create a picture of a "facepleate", next move was to add tags to graphic object like:

.speed

.temperature

.courent

i create screen window and than i put it all in it, then i create button and i put in event comand:

SetPropertyByConstant,

Everything is working OK, i can change facepleate depending on motor number using Tag prefix.

But now i nead to add some function for meinteance for example i want to drive motor in exact speed and that setting wil be only forengineer. I want to click on button placed on my "facepleate" wich is conected to a tag MOTOR_1.CONTROL after i use prefix change, how can i do this ?

I create another screen window and another picture with i/o field that contain tag .control but i cannot animate that window, how i can do that ?