Hi Peter,
Use folders… then yu can reach “structure” like follows:
[default]/PLC1/Tag1
[default]/PLC1/Tag2
[default]/PLC1/TagN
[default]/PLC2/Tag1
[default]/PLC2/Tag2
[default]/PLC2/TagN
[default]/PLCN/Tag1
[default]/PLCN/Tag2
[default]/PLCN/TagN
You get tags well organized AND pretty nice advantage - Indirect addressing:
[default]/PLC{1}/Tag1 where parameter {1} means PLC number.
Is that what you are thinking of?
Radim