Hello @nbaraili,
Thank You for posting your query onto the Forum.
Well you can insert the symbols and characters using the DAX. I’m providing a link below where one of our expert @Greg had created a fantastic post based on this topic. From that link you can also download the PBIX file of his working as well as the codes list available in Excel format.
Hoping you find this link useful and meets your requirements that you’ve been looking for.
Note: In order to view the entire post, please click onto the link and not on the “Expand/Collapse” button.
Thanks and Warm Regards,
Harsh