For more details, here is the display dropdown label if you manage to set it up
DEMO
If and are interested please continue to read it because we will start discussing the tricks to make the label into a dropdown menu.
1. first log in with your blog account.
2. Once you are on the select Dashboard template > > then click on Edit HTML.
3. Please find the code that resembles the following, use CTRL + F to make it easy for you to look.
<b:widget id='Label1' locked='false' title='Labels' type='Label'/>4. If you've found it, please replace this code with the code below.
<b:widget id='Label1' locked='false' title='Categories' type='Label'>Please change the writing that I bolded title according to your needs, and then click Save and please check the results.
<b:includable id='main'> <b:if cond='data:title'>
<h2><data:title/></h2> </b:if>
<div class='widget-content'>
<select style='width:100%' onchange='location=this.options[this.selectedIndex].value;'> <option>TITLE LABEL</option>
<b:loop values='data:labels' var='label'> <option expr:value='data:label.url'>
<data:label.name/> (<data:label.count/>) </option> </b:loop> </select></div> </b:includable> </b:widget>