As a JSM administrator, you can access My Tasks global configuration from the main Jira menu by selecting Settings (upper right corner of your screen) → Apps → Modify My Request: Get started
From here, you have several options:
→ you can enable My tasks for all Jira Service Management project.
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→ you can disable/enable usage data collection
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→ you can access the Support and Documentation of Modify My Request.
When you click on either the Support, or Documentation button in the upper right corner of your screen → a confirmation dialog appears with directions that the link leads outside Jira