"org-left">start clock on current item</td>
</tr>

<tr>
<td class="org-left"><code>C-c C-x C-o/x</code></td>
<td class="org-left">stop/cancel clock on current item</td>
</tr>

<tr>
<td class="org-left"><code>C-c C-x C-d</code></td>
<td class="org-left">display total subtree times</td>
</tr>

<tr>
<td class="org-left"><code>C-c C-c</code></td>
<td class="org-left">remove displayed times</td>
</tr>

<tr>
<td class="org-left"><code>C-c C-x C-r</code></td>
<td class="org-left">insert/update 