Hi All, 

Hopefully this is a simple one but I havent been able to find any information on it. 

I'm currently setting up a diagnostics screen for my program. I have done this in other software's and it has been quite straight forward.

I'm looking for a way to change the tag that a display is processing based on the input to another tag. 
So set an input to 20 and an indicator shows the state of M20 for example.  

Other programs I have used in the past have had Tag address offsets that have been handy for this but there does not seem to be the ability to do that here. 
I'm assuming there may be a way to do it with recipes? But I'm not very familiar with using them and including every single tag for the whole program seems like overkill. 

Any and all help would be much appreciated. 
Thanks in advance 
JK

Solution in the PLC:
* Use array 
* Use lookup (like case-structure)

Solution in the (Siemens) HMI:
* Use multiplexing