Forms - Initially selected option on select menus

Hi Guys

Having an issue on how to show a default message on a select menu in the Perch forms app.

<perch:input type="select" id="type" options="Type1, Type2, Type3, Type4, Type5" />

I saw an old forum post showing that could use default="" but I've tried that as below and it defaults to the first in the options list.

<perch:input type="select" id="type" default="Select Type" options="Type1, Type2, Type3, Type4, Type5" />

Any ideas?