Terminal dashboard in golang using "termui"

I am working on drawing graphs on the terminal itself from inside a go code.I found this (https://github.com/gizak/termui) in golang. And used this(https://github.com/gizak/termui/blob/master/_example/gauge.go) to draw graph in my code.

Problem is this , as we can see in the code( https://github.com/gizak/termui/blob/master/_example/gauge.go ), they are passing g0,g1,g2,g3 all together in the end "termui.Render(g0, g1, g2, g3, g4)".
In my case I don't know how many gauges to draw before hand so I used a list to store gauge objects and then tried to pass list to render.

    termui.Render(chartList...)

But it creates only one gauge.

This is how I am appending elements in the list.

   for i := 0; i < 5; i++ {
        g0 := termui.NewGauge()
        g0.Percent = i
        g0.Width = 50
        g0.Height = 3
        g0.BorderLabel = "Slim Gauge"
        chartList = append(chartList, g0)
    }

what I am getting is a gauge for i=4 only. when I am doing termui.Render(chartList...)
Am I doing something wrong?
PS - I have modified question based on the answer I got in this question.

Here is a good read on Variadic Functions

Take a look at the function signature of Render, https://github.com/gizak/termui/blob/master/render.go#L161

func Render(bs ...Bufferer) {

All you need to do is

termui.Render(chatList...)

assuming chartList is a []Bufferer

Edit
You are only seeing one because they are stacking on top of one-another. To see this add

g0.Height = 3
g0.Y = i * g0.Height            // <-- add this line
g0.BorderLabel = "Slim Gauge" 

From a quick review of the project, it appears there are ways for auto-arranging that have to do with creating rows (and probably columns). So you might want to explore that, or you will need to manually position your elements.