LDN - Luminis Developer Network

I am trying to add a link to an SSB page and have identified where I need to add the link. The link is to an external system and I can see that it must be included in a BANINST1 package but I don't know how to code it to point to the right URL or how to test only my code without running the entire package.

I want a link, such as "anchor verbiage" which points to some mylink constant with some variables. In HTML this would be coded as my verbiage

This is my code:
twbkfrmt.f_printanchor(
curl => twbkfrmt.F_encodeurl (mylink
|| 'literal_1' || 'value1' ||
'literal_2' || 'value2' ),
ctext => 'myverbiage';
HTP.br

Other than coding the changes in the PL/SQL package, is there some other way I can test only this code to see if it works? I have SQL Developer and a stripped down version of Toad.