Many times I find myself copying the content of mixins into other xml files instead of just using the mixin, because I want a slight variation on the mixin.
For example let’s say I have the following mixin:
<mixin>
<display-name>Mixin displayName</display-name>
<items>
<input type="TextLine" name="someTextLine">
<label>Some text line</label>
<occurrences minimum="0" maximum="1"/>
</input>
</items>
</mixin>
And in my use case I want it to be a required field.
Currently I’ll have to duplicate the whole mixin and make one optional and one required variant.
For more complex mixins, there might be many many variants.
It would be nice if we could override/decorate the mixin, something like this:
<inline mixin="mixinName">
<input name="someTextLine">
<occurrences minimum="1"/>
</input>
</inline>