Replace all of one entity/building/etc with another

[Zappron]

short version: i basically need to replace 4k+ instances of one object within my factorio with another (yes it's a mod compatibility thing). I don't care if it's robots replacing them or some kind of savegame-editor, as long as it gets the job done. i'm deeply grateful for any help in advance.

[SuperSandro2000]

Did you take a look on how migration .json files work? They would be perfect for this.

[Zavian]

Upgrade planner can also help you do this. https://mods.factorio.com/mods/Klonan/upgrade-planner

[Zappron]

Did you take a look on how migration .json files work? They would be perfect for this.

i haven't taken a look at that, where can i learn about it?

Upgrade planner can also help you do this. https://mods.factorio.com/mods/Klonan/upgrade-planner

i looked at that, but it won't let me assign upgrades unless the items are "of the same type". and even though my items in question are two electric poles, it doesn't seem to recognize them as same type since they're from two different mods.

[Zappron]

Did you take a look on how migration .json files work? They would be perfect for this.

Okay i just went and searched myself, and it seems to have worked! thank you man, you really helped me revive my game!

[SuperSandro2000]

Did you take a look on how migration .json files work? They would be perfect for this.

Okay i just went and searched myself, and it seems to have worked! thank you man, you really helped me revive my game!

glad I could help you. If you have troubles getting it to work in the future feel free to dm me.