Functional Location change edit mask

Hello,

We currently have a functional location structure that has 4 levels:

XXXXX-XXXX-XXXXX-XXXXXXXX

1 2 3 4

The plant is in an evaluation stage to redo their functional location structure, there is a demand to create an additional level , so now a total of 5

They propose:

XXXXX-XXXX-XXXXX-XXXX-XXXX

1 2 3 4 5

(_Please note the current 4 level structure is only being populated at the 3 level so we do not have any functional location created at the 4 level.)_

Is this the correct process:

So if I go to t-code OIPK and change the structure to the new propose structure, will I get any issue.

Will I have to activate alternative labeling as well to let me change the structure.

Please advise.

Thanks,