Comment 4 for bug 1782848

@jeyjey, one idea for improve this:
On 6.0.0-rc1-unknown-1e43773~65~ubuntu16.04.1 this buttons just appear after I select the specific line of the Value column (for example the "Open datasheet on browser" just appear after I clicked in twice on Datasheet text value).
For better UX, this buttons could be visible already before, avoiding that I have to click in the value and after in the button, but just click in the button.