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Find Story Points on the list and then click on the three dots icon and select Contexts and default value.
That should let you change the context of the field to include other issue types. Click on Edit Configuration
And then please select the applicable issue types.
You may also need to add Story Points field to relevant screens sometimes the Field Configurations may also be hiding the Story Points.
Configuring estimation
For scrum boards the field can be defined in board configuration. For kanban boards you can define the estimation field in the poker session settings.
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