I have components which need complex parametrization like JSON values, richtext or very long text values.

My attribute is defined as string like this

<aura:attribute name="pageParams" type="String" default="" access="global" />

and in the design

<design:attribute name="pageParams" label="Custom Parameters"   description="..." /> 

Now in the designer I get only tiny one-line inputs looking like

enter image description here

Is there any way to get multiline textareas or Richtext-inputs inside the designer (Lightning App Builder)?

Anything planned or on the roadmap?

1 Answer 1


From the documentation for design:attribute, looks like what you are looking for is not supported at the time being.

For Lightning page interfaces, the design resource supports only attributes of type Integer, String, or Boolean.

More details on the documentation here.

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