Problem/Motivation
After adding a custom block you can find the custom block in the list of admin/structure/block, but you are not provided with a link to edit this block.
To actually edit the block you have to switch to the "Custom block library" admin/structure/block/block-content, to find the contextual "Edit" link you are looking for.
This is very puzzeling, especially if you manage to create your new block on admin/structure/block by clicking "Place block" near a region header and follow "Add custom block" in the dialog. This way you are able to create a block without ever visiting the "Custom block library".
Proposed resolution
Add an "Edit" link for custom blocks in admin/structure/block.
Remaining tasks
- Add contextual links
- Write/adapt tests
User interface changes
- Custom block have an extra link in the list of admin/structure/block.
Original issue summary
Referring to http://drupal.stackexchange.com/questions/144133/contextual-links-for-cu...
"I have created a custom block type and it would be wonderful to have a link in the block dropbutton: "Edit block content"."
thanks and regards
sb