Create a Gantt chart in Numbers for design schedule

Hi,

I need help with making a Gantt chart. I have looked on Apple Numbers help and there are a few discussions, but I was wondering if anyone could help me, I thought I would ask if anyone had a good template or idea to show me.

I want to produce a Gantt chart that is for keeping track of design schedules.

I want to show things like:

Stage of Task, Task Name, Person on Project, Start Date, Finish date, Days, % Complete, Priority and then have to the right the data plotted and showing Months and then underneath the date of the month.

I want to show the whole year and every day of the month.

A lot of templates online are excel and are either too simple, too complicated or just not compatible with Numbers.

Any ideas and help would be most grateful.

Many thanks.