foundryvtt-reve-de-dragon/templates/item-sheet.html

<form class="{{cssClass}}" autocomplete="off">
    <header class="sheet-header">
        <img class="profile-img" src="{{img}}" data-edit="img" title="{{name}}"/>
        <div class="header-fields">
            <h1 class="charname"><input name="name" type="text" value="{{name}}" placeholder="Name"/></h1>
            <div class="resource">
            	<label>Quantity</label>
                <input type="text" name="system.quantity" value="{{system.quantity}}" data-dtype="Number"/>
            </div>
            <div class="resource">
            	<label>Weight</label>
                <input type="text" name="system.weight" value="{{system.weight}}" data-dtype="Number"/>
            </div>
        </div>
    </header>

    {{!-- Sheet Tab Navigation --}}
    <nav class="sheet-tabs tabs" data-group="primary">
        <a class="item" data-tab="description">Description</a>
        <a class="item" data-tab="attributes">Attributes</a>
    </nav>

    {{!-- Sheet Body --}}
    <section class="sheet-body">

        {{!-- Description Tab --}}
        {{>"systems/foundryvtt-reve-de-dragon/templates/partial-item-description.html"}}

        {{!-- Attributes Tab --}}
        <div class="tab attributes" data-group="primary" data-tab="attributes">
            <header class="attributes-header flexrow">
                <span class="attribute-key">Attribute Key</span>
                <span class="attribute-value">Value</span>
                <span class="attribute-label">Label</span>
                <span class="attribute-dtype">Data Type</span>
                <a class="attribute-control" data-action="create"><i class="fas fa-plus"></i></a>
            </header>

            <ol class="attributes-list">
            {{#each system.attributes as |attr key|}}
                <li class="attribute flexrow" data-attribute="{{key}}">
                    <input class="attribute-key" type="text" name="system.attributes.{{key}}.key" value="{{key}}"/>
                    {{#if attr.isCheckbox}}
                    <label class="attribute-value checkbox"><input type="checkbox" name="system.attributes.{{key}}.value" {{checked attr.value}}/></label>
                    {{else}}
                    <input class="attribute-value" type="text" name="system.attributes.{{key}}.value" value="{{attr.value}}" data-dtype="{{attr.dtype}}"/>
                    {{/if}}
                    <input class="attribute-label" type="text" name="system.attributes.{{key}}.label" value="{{attr.label}}"/>
                    <select class="attribute-dtype" name="system.attributes.{{key}}.dtype">
                        {{#select attr.dtype}}
                        {{#each ../dtypes as |t|}}
                        <option value="{{t}}">{{t}}</option>
                        {{/each}}
                        {{/select}}
                    </select>
                    <a class="attribute-control" data-action="delete"><i class="fas fa-trash"></i></a>
                </li>
            {{/each}}
            </ol>
        </div>
    </section>
</form>