In Gmail you might want to Reply All to an email instead of Reply (only to sender). For years and years there was a "Google Lab" available in the Gmail settings to change the button next to emails from Reply to Reply All. Lo did the intertubes buzz with webpages showing n00bs how to find this feature, and all was good and there was much rejoicing.
Then apparently Google decided that Default Reply to All should be a first-class Gmail feature. That is fine and was probably a good decision but it shows how the internet can lead people astray when looking for help with features that have changed in popular software. If you search the web for how to find this setting you will encounter countless pages explaining Google Labs and how to find the DRTA feature, but it is very difficult to find pages noting the feature evolution or how to work with the feature as it now exists.
- Open Gmail
- Click the Widget icon near the top-right corner of the page
- Go to the "General" tab
- Set "Default Reply Behavior" to "Reply All"