Example with mandatory variables not filled in
```yaml
---
dynval1: # A dynamic family
vardyn: example # A dynamic variable
dynval2: # A dynamic family
vardyn: example # A dynamic variable
```
Example with all variables modifiable
```yaml
---
var: val2 # A suffix variable
dynval1: # A dynamic family
vardyn: example # A dynamic variable
dynval2: # A dynamic family
vardyn: example # A dynamic variable
```