How to make flag be true when objective ends in editor? (Question, written as bug because cant use discord)

[traincrisis]

Platform: Linux

Build: build 140.4

Question: I want to make when an objective finishes, it sets flag for world processors, because world processor must create explosions when atomic bomb timer will finish.

Steps to reproduce: Impossible to reproduce, because its a question. questions cannot be reproduced.

Link(s) to mod(s) used: Fading revelations

Save file: This is question, questions cannot be saved into file..

(Crash) logs: Either crash reports from the crash folder, or the file you get when you go into Settings -> Game Data -> Export Crash logs. REQUIRED if you are reporting a crash.

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Place an X (no spaces) between the brackets to confirm that you have read the line below.

• I have updated to the latest release (https://github.com/Anuken/Mindustry/releases) to make sure my issue has not been fixed.
• I have searched the closed and open issues to make sure that this problem has not already been reported.

[end-me-please]

There’s also a subreddit