Hi all, 

at the lower left corner of the SelA16In, there is a value which is linked to SelInt. Can I modify it to display text instead? For example, integer 1 = “Apple”, integer 2 = “Orange”. I do notice there is a "Value as text" in the properties group "Other", but how should i configure it to corresponding integers?

Thank you.

You can edit the block (even though its logic is protected, you can still edit the parameters of the block IO by opening the editor from the blocks folder, from the your MP master data library so you can sync) and give the SelInt (and if you are doing this I'd suggest also SelExt) inputs the S7_enum parameter set with true.
Then configure the enumeration on those IO nubs from your shared declarations at each instance assuming its unique per instance (most likely case), if its global for your entire MP you could just define it in the updated block definition.

For me the use case is kind of weird except for the SelExt which makes more sense you might want to see the enums from SFC.  Since the SelInt interaction from the faceplate does not rely on the integer number at all being seen by the user, and each selection button on the faceplate is hard coded to write the integer value of the selection.  (unless you've significantly messed with the standard faceplate)

You can use this enum to further customize your block icon which might be more useful and maybe that's what you are going for.