foundry/Data/systems/pf2e/templates/items/lore-details.hbs

<fieldset class="basics">
    <div class="form-group">
        <label>{{localize "PF2E.ProficiencyLabel"}}</label>
        <select name="system.proficient.value" data-dtype="Number">
            {{#select data.proficient.value}}
                {{#each proficiencies as |label p|}}
                    <option value="{{p}}">{{localize label}}</option>
                {{/each}}
            {{/select}}
        </select>
    </div>
</fieldset>

<fieldset>
    <legend>Situational Skill Rolls</legend>

    <table class="skill-variants">
        <tr>
            <th>Label</th>
            <th>Roll Options</th>
            <th>&nbsp;</th>
        </tr>
        {{#each data.variants as |variant idx|}}
        <tr>
            <td><input name="system.variants.{{idx}}.label" value="{{variant.label}}"></td>
            <td><input name="system.variants.{{idx}}.options" value="{{variant.options}}" placeholder="separated by comma"></td>
            <td><div class="remove-skill-variant" data-skill-variant-index="{{idx}}" title="{{localize "PF2E.ItemRemoveRuleElement"}}"><i class="fa-solid fa-trash"></i></div></td>
        </tr>
        {{/each}}
    </table>
    <div class="add-skill-variant"><i class="fa-solid fa-plus"></i> {{localize "PF2E.ItemNewSkillVariant"}}</div>
    <div class="form-group">{{localize "PF2E.LoreProficiencyDisclaimer"}}</div>
</fieldset>