For addition, follow the below steps:
Step. 1. Click
on add index near search bar on right side in header
Step. 2. Double
click on index you want to add and it will be added
For Deletion, follow the below steps:
Step. 1. Single
click on index you want to delete
Step. 2. You
will see a delete button “bin icon”
Step. 3. Click
on bin icon to delete the index from top list
For Replace, follow the below steps:
Step. 1. Single
click on index you want to replace
Step. 2. You
will see a two way arrow symbol
Step. 3. Clicking
on it will open an index selecting dialogue box
Step. 4. Select
the index you want to replace the older one with and double click on the same
to replace