You need a Django administration account to edit time limits of users' ability to edit or delete messages.
- To access the Django administration add "/admin" to your organization's URL e.g. https://myorganisation.chatgrape.com/admin/
- Click on "Organizations"
- Choose your organization
- Choose "Features" and click on"+ Add features"
- Choose the feature "Limit Time to Edit and Delete Messages". Make sure to activate the checkbox "Value".
- Confirm your changings by clicking the button "Save".