So, not sure why this happening, but here goes. I have a build section with the following code (in a table): <tr> <!-- Strength --> <td><span style="display: inline-block; width: 80px; font-weight: bold; font-size: 12px; text-align: right;">[S]trength: </span></td> <td><input type="number" name="attr_character_strength" value="8+@{s_points}+@{s_points_bg}+@{s_points_raise}" disabled="true"></input></td> <td><input type="number" name="attr_s_points" value="0"></input></td> <td><input type="number" name="attr_s_points_bg" value="0"></input></td> <td><input type="number" name="attr_s_points_raise" value="0"></input></td> </tr> And it works, I get my attr_character_strength to calculate correctly. It does not, however, show up in Attributes on the character tab, and the following code: <!-- Strnegth --> <span style="font-weight: bold; font-family: Papyrus; font-variant: small-caps; font-size: 12px;">Strength <span name="attr_character_strength"></span></span><br> Does not display properly; where it should display as: 'Strength 10' I instead get 'Strength 8+@{s_points}+@{s_points_bg}+@{s_points_raise}' TL/DR: How do i set a calculation as a proper attribute?