I came across the block template "Email card: Summary horizontal" (among
a few other Core email block templates) that don't support custom "Read
I needed this feature for moving an obits newsletter from Zen to Flex, the text for the custom block template on Zen was " View Obituary / Sign Guestbook," which is more sensitive and empathetic than "Read More" I would imagine there are other use cases for this as well.
However, I did notice that the Core block template uses the macro email_assetLead in the Core Flex Email component.
Blocks using that macro can use "read_more_text" as a custom property to
support custom text.
I made a custom copy of the Core block template "Email card: Summary
horizontal" for now, but of course it'd be nice to have this in Core.
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