The Manage rules option allows you to view, edit, reorder, enable, disable, or delete existing conditional formatting rules in the planning sheet.
Use the Manage rules pane to organize and control how multiple conditional formatting rules are applied to your data.
To open the Manage rules pane:

The Manage rules pane displays all the conditional formatting rules configured for the current planning sheet. The following actions can be performed from the Manage rules pane:
Create a new conditional formatting rule from the Manage rules pane.
Select the pencil icon next to the rule to modify its settings, conditions, formatting options, or target range.
Use the toggle option to temporarily enable or disable a conditional formatting rule without deleting it. Disabled rules are not applied in the planning sheet but can still be retained for future use.
Select the Reorder rules (⋮⋮) option to control the evaluation priority when multiple conditional formatting rules are applied to the same cells. Rules are evaluated based on their order in the Manage rules pane.
Delete rules that are no longer required from the planning sheet. Deleting a rule permanently removes the associated formatting configuration.
Create a copy of an existing rule to reuse the same configuration with minor modifications.
When multiple conditional formatting rules are applied to the same value, rule priority determines which formatting is displayed. Rearrange the rule order to control formatting precedence.

Conditional formatting rules configured in the planning sheet can also be applied during Excel and PDF exports. Enable or disable rules to be included in the exported report. Learn more about Exports here.