It is similar situation and similar to this question, but there are no solution for my specific problem. I used mu Atom editor for see Markdown text (preview), it was at a kind of "Tools menu"... Working fine last months.
Now there are no tools-menu, and no alt+t or similar command to enable it... How to get back the tools-menu?
Atom v1.18.0 working in UBUNTU 16 LTS.
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