Angela, following the article you reminded me of above and playing a bit with the AI integrated into doc.laserfiche.com, I have found a solution to this dilemma using formulas, which I share here as I did. Perhaps someone can find a more refined solution by applying best practices, but for now, this one is working according to what I need. If someone improves it, it will be perfect.
I create a new Field (Multi Field) and put the formula inside, and it works perfectly, and went I put the Multi Field Variable into an Email task and send it automatically, Outlook puts the Ahrefs tags to the URLs and makes it clickable without problems.
I used the variables field where I put the URL links, because it is easier to update the field value instead of the URL inside the formula. And hide those fields.
I hope this can help any other members in case they need something like this.
=CONCATENATE(
IF(First_Planning_Review_Optional_Link.OP1, "Inspection Fee Payment URL: ",""), //Add the URL header title
IF(First_Planning_Review_Optional_Link.OP1, Inspection_Fee_Payment_URL_Link, ""), // Add the field variable where I have the URLs
IF(First_Planning_Review_Optional_Link.OP1, CHAR(13) & CHAR(10), ""), // Add line break between URLs
IF(First_Planning_Review_Optional_Link.OP2, "Subsequent Inspection Fee Payment URL: ",""), //Add the URL header title
IF(First_Planning_Review_Optional_Link.OP2, Subsequent_Inspection_Fee_Payment_URL_Link, ""), // Add the field variable where I have the URLs
IF(First_Planning_Review_Optional_Link.OP2, CHAR(13) & CHAR(10), ""), // Add line break between URLs
IF(First_Planning_Review_Optional_Link.OP3, "Application Fee Payment URL: ",""), //Add the URL header title
IF(First_Planning_Review_Optional_Link.OP3, Application_Fee_Payment_URL_Link, ""), // Add the field variable where I have the URLs
IF(First_Planning_Review_Optional_Link.OP3, CHAR(13) & CHAR(10), ""), // Add line break between URLs
IF(First_Planning_Review_Optional_Link.OP4, "Operation Renewal License Application URL: ",""), //Add the URL header title
IF(First_Planning_Review_Optional_Link.OP4, Operation_Renewal_License_Application_URL_Link, ""), // Add the field variable where I have the URLs
IF(First_Planning_Review_Optional_Link.OP4, CHAR(13) & CHAR(10), ""), // Add line break between URLs
IF(First_Planning_Review_Optional_Link.OP5, "Operation New License Application URL: ",""), //Add the URL header title
IF(First_Planning_Review_Optional_Link.OP5, Operation_New_License_Application_URL_Link, ""), // Add the field variable where I have the URLs
)