You can add text, for example a static hashtag, before or after every post. You can do this for a feed or if you want a specific hashtag for each unique social account, you can add text to each social.
1) Click on the Route you want to update. This will display a menu. If you are adding static text to a Feed, click Settings.
2) If you want to add unique text to each unique Social account, click the Gear icon to expose the menu of options.
3) Enter your prefix and/or suffix text and click Save. The text that you enter will display on each update shared.