Simplify view of merge history in master branch

When viewing the commit history of the master branch, the history contains all the commits in all branches that have been merged. This is quite annoying because it makes the history unreadable.

Locally, I can use git log --first-parent, as documented on the Atlassian Blog, but I can't get Stash to show this view.

Can you please provide an option on the page to switch to this view? Bonus points if you can provide a user/project preference to make this the default so I don't have to click on it every single time I view the history!