S7 switching textfield has gone in 3.18

[jujinp]

if we connected to PLC as Automatic - H, we have to write a switching PLC tag under 3.16 to decide a active PLC.

In 3.18 the textfield has gone.

what's difference "Automatic-H" from "Automatic" in 3.18?
Can we use "Automatic-H" without the textfield?

[gschijndel]

In the readme of 3.18 P016 I read that the PLC tag field has been restored for the S7 driver