How to hide current Icegram Engage message when another message is shown
To Hide Icegram message when another message is shown, you need to vail the Icegram Engage Pro plan.
Steps:
Step 1: Install and Activate Icegram Engage Pro.
Step 2: Create New Campaign or Edit a previous campaign.
Step 3: Go to the Hide Trigger option in the Campaign Editing Panel.
Step 4: Set Hide Trigger of the Campaign to "Another Message" from the drop-down.
Step 5: Select "of same type" or "of any type" in the adjoining box.

To hide any Icegram message when showing another message of same type (e.g – hide one popup and show another popup)

To hide any Icegram Engage message when showing another message of any type (e.g – hide popup and show action-bar)
Step 6: Fill in other details of the campaign and watch the preview.
Step 7: Publish / Update the campaign.