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Add custom repository by click the gear icon > Manage Plugin Repositories
Add following repository URL either URLs:
https://plugins.jetbrains.com/plugins/pricefx-eap/list (Jetbrains marketplace, 1-2 days delay) or
https://developer.pricefx.eu/studio/eap/ (internal marketplacehosted internally, will probably be closed in the future. No delay though)
Click OK
Follow from step 3 of the previous section.
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