Is there any way to keep a row from being blocked in QP02?

Hi experts.

I would like to ask you a question about inspection plan(QP02).

In the screen named "Characteristic Overview", I can see the chain-shaped mark in the column index "Ref to charact.".

Once this chain is set, I can't change even the inspection characteristic itself, let alone values filled in other indexes like "upper limit" or "lower limit".

Since a row which has the chain mark gets grayed out and I can't change almost all the values, I need to unlock the blocked row first and then change the value I want to change.

It is so troublesome to unlock rows every time.

I would like to ask you if there is a way to keep a row from being blocked.

Any help is welcome.

Best regards.

Takeshi