# Wproofreader Proofreader requires a valid license to work, otherwise it returns 403. Read on the [dev KB article](https://github.com/cksource/ckeditor5-knowledge-base/blob/master/testing-phase.md#wproofreader-samplemanual-test) to set it up locally. Note: the plugin starts checking only **after focusing** the editor. ## Inline typo correction 1. Focus the editor. 1. Wait until typos are indicated. 1. Hover mouse cursor over "witth". 1. Pick "with" from appearing context menu. ## Inline grammar correction 1. Focus the editor. 1. Wait until typos are indicated. 1. Hover mouse cursor over (the first) "However". 1. Pick "However," from appearing context menu. ## Dialog checking 1. Focus the editor. 1. Hover a spell check icon in the bottom-right corner of the editable. 1. Click "Proofread in dialog" option. 1. Use it to fix a typo.