Configuration Changes Locked out by Distributed IB Tools

There is an application which is used to learn the platform. It had been downloaded from the internet education site. When I open it in Designer mode over all objects the following message is written: "Configuration changes locked out by distributed IB tools".
Please help, how can I remove this?

Run this code:

ExchangePlans.SetMasterNode(Undefined);

Write a data processor containing a single line:

ExchangePlans.SetMasterNode(Undefined);

Thank you, Stanislav!
That what was worked for me!

There is another way - to invoke the DESIGNER with key /ResetMasterNode, of course with no other connection to the same database

Developer guide Page II-684:

Attached Files

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