1. Markdown support (Markdown support?  #709)
2. Lack of types for Tools (❓module declaration error. #2143)
3. A filter like Notion, because in current filter, it gets out of position if searched.

1. Hide toolbar actions for 1 field. later I need to allow a maximum number of blocks. Then sometimes I have to show it and sometimes I don't. Now I do:

.ce-toolbar__actions--opened {
    display: none;
}

1. Lack of updates/maintenance for blocks built by the EditorJs team. I see these as being part and parcel of EditorJs, and I wish they were updated and maintained.

your documentation is really hard to understand, it's English but also with tons grammar issues. I got lost everywhere. It's a very simply lib but somehow you guys made the docs like reading C. Please make it easier.

1. Very limited set of tools - wish there were a little bit more options (columns, footnotes,...), a majority of tools from awesome editorjs are just not working in a newest version.
2. Because there is a limited set of tools, I usually have to write those tools myself and I am having a really hard time with a current documentation. It's mostly outdated (for example inline tool doc doesn't even work properly). New changes are usually not documented or well explained.