So I'm designing my own TTRPG system and I want to make a character sheet for it in Roll20. I'm not a programmer yet, so I'm just stumbling around copying and pasting things because I'm told they'll work, but I think I messed something up. I've managed to get a swapping area so that users can easily make a PC sheet or an NPC sheet, but I can't make the PC sheet's tab system work. I have: HTML <h2 align="center">Player Sheet</h2> <div class="spacer"></div> <div> <button type="action" name="act_stats">Stats</button> <button type="action" name="act_perks">Perks</button> <button type="action" name="act_actionss">Actions</button> <button type="action" name="act_inventory">Inventory</button> <button type="action" name="act_notes">Notes</button> <button type="action" name="act_options">Options</button> </div> <input type="hidden" class="sheet-tabstoggle" name="attr_sheettab" /> <div class="spacer"></div> <div class="sheet-stats"> <h3 align="center">Stats</h3> </div> <div class="sheet-perks"> <h3 align="center">Perks</h3> </div> <div class="sheet-actions"> <h3 align="center">Actions</h3> </div> <div class="sheet-inventory"> <h3 align="center">Inventory</h3> </div> <div class="sheet-notes"> <h3 align="center">Notes</h3> </div> <div class="sheet-options"> <h3 align="center">Options</h3> </div> <script type="text/worker"> const buttonlist = ["stats","perks","actions","inventory","notes","options"]; buttonlist.forEach(button => { on('clicked:${button}', function() { setAttrs({ sheettab: button }); }); }); </script> CSS .sheet-stats, .sheet-perks, .sheet-actions, .sheet-inventory, .sheet-notes, .sheet-options { display: none; } .sheet-tabstoggle[value="stats"] ~ div.sheet-stats, .sheet-tabstoggle[value="perks"] ~ div.sheet-perks, .sheet-tabstoggle[value="actions"] ~ div.sheet-actions, .sheet-tabstoggle[value="inventory"] ~ div.sheet-inventory, .sheet-tabstoggle[value="notes"] ~ div.sheet-notes, .sheet-tabstoggle[value="options"] ~ div.sheet-options { display: block; } The problem seems to be with the sheetworker, since the character sheet's Attributes section doesn't list a "sheettab" attribute after I've clicked a button. I noticed that there was no "getAttrs" section of the sheetworker, but I assumed that that was because there isn't an attribute to get until a button is clicked. Apologies for the lack of program font or any other post-styling irregularities, and thank you in advance for your help! :D