Add unlimited special price to each value of each option.
Set a different special price for each customer group
Set a priority for each special price
Set a date range (date start and date end) for each special price
- Login to your OpenCart Administration panel
- Go to Extensions > Installer and upload zip file suited for your OpenCart version
- Go to Extensions > Extensions > modules > Special Price For Product Options > Install, Enable and save.
- Go to Extensions > Modifications and click Refresh
- Go to Dashboard > Developer Settings (gear icon) > Refresh