Consider the table below as a dashboard, but instead of a number for fields predecessor and successor, I want to show some icons.
For this case, how can I use rangemap?
uniqueid    status     predecessor    successor 
24501      Success    24501       24504 
24502      Success    24502       24504 
24504      Success    24504       24505 
24505      Success    24505          24506  
24506      Fail    24506          24510 
Thanks
The field output by rangemap is called range. Do your first rangemap, then rename the field range to something more descriptive for your data. Now you are clear to use rangemap again with no field name collision.
Here is an example with the new Status Indicator viz:
https://answers.splunk.com/answers/409408/how-do-you-use-the-new-status-indicator-visualizat.html
Follow one of the Table Icon Set examples from the Dashboard Examples App available at https://splunkbase.splunk.com/app/1603/
Once installed, hit https://your_splunk:8000/en-US/app/simple_xml_examples/contents#Table_Elements
Show us a mockup of your desired output for this dataset. I do not get it.