You can chose to have your sticky threads separated. Navigate to Appearance > Styles > XenForo - UI.X > Style Property Groups > [UI.X] Threads. Check or uncheck the Separate Sticky Threads option.
Enable Collapsible Sticky Threads allows you to choose whether you'd like your users to be able to collapse the sticky threads section.
By default, icons appear next to your message controls. To remove these icons, navigate to Appearance > Styles > XenForo - UI.X > Style Property Groups > [UI.X] Threads and uncheck Add Icons to Message Controls.
To remove the button like appearance of your message controls, check Plain Message Controls. Your Private Controls Breakpoint allows you to adjust at what width your message controls will no longer appear separate, but as a dropdown menu. Enter this value as pixels. Centered Controls Breakpoint is at what width your message controls will become centered within the postbit. You can enter your preferred value in pixels, 0 for never center, or 100% for always centered.
Abridged signatures are signatures that are too long in appearance that are collapsed to save screen space. To enable abridged signatures, navigate to Appearance > Styles > XenForo - UI.X > Style Property Groups > [UI.X] Threads. Check or uncheck Enable Abridged Signatures according to your preferences.
To adjust the maximum height for signatures, enter your desired height in pixels within Message Signature Max Height. Users have the option to expand a message that exceeds your message signature max height. To have the abridged signature automatically expand when a user hovers over, check Expand Abridged Signatures Upon Hover. When Expand Abridged Signatures Upon Hover is activated, you can also enable Hide Abridged Signatures On Hover on Non-Touch Devices. When this is enabled, it will hide abridged signature hints on devices that don't support touch input.