foundry/Data/systems/pf2e/templates/items/partials/ability-activation.hbs

<div class="form-group">
    <label>{{localize "PF2E.ActionActionsLabel"}}</label>
    <div class="details-container-flex-row">
        <select name="system.actionType.value" data-dtype="String">
            {{#select data.actionType.value}}
                {{#each actionTypes as |name type|}}
                    <option value="{{type}}">{{localize name}}</option>
                {{/each}}
            {{/select}}
        </select>
        {{#if (eq data.actionType.value "action")}}
            <select name="system.actions.value" data-dtype="Number">
                {{#select data.actions.value}}
                    {{#each actionsNumber as |name type|}}
                        <option value="{{type}}">{{localize name}}</option>
                    {{/each}}
                {{/select}}
            </select>
        {{else}}
            <input type="hidden" name="system.actions.value" value=""/>
        {{/if}}
    </div>
</div>

<div class="form-group">
    <label>{{localize "PF2E.Frequency.Label"}}</label>
    {{#if data.frequency}}
        <div class="frequency">
            <input type="number" name="system.frequency.max" value="{{data.frequency.max}}" />
            <span>{{localize "PF2E.Frequency.per"}}</span>
            <select name="system.frequency.per">
                {{#select data.frequency.per}}
                    {{#each @root.frequencies as |name type|}}
                        <option value="{{type}}">{{localize name}}</option>
                    {{/each}}
                {{/select}}
            </select>
            <a data-action="frequency-delete"><i class="fas fa-fw fa-times"></i></a>
        </div>
    {{else}}
        <span class="frequency empty">
            {{localize "PF2E.Frequency.AtWill"}}
            <a data-action="frequency-add">({{localize "PF2E.AddShortLabel"}})</a>
        </span>
    {{/if}}
</div>