R: how do you embed plots into a tab in RMarkdown in a procedural fashion?

Question

I can embed plots using just RMarkdown\'s {.tabset}

#### Heading  {.tabset}
##### Subheading 1
```{r, echo=F}
df[[1]]    
```

Answer 1

Adding both plot.new(), dev.off() inside the for loop solves the problem of adding all the figures in the last tab. See the complete solution here.