Hello Will Roberts !

If you want to hide the titles in your Timeline posts then try to apply the following CSS code in your Lucid's mix Custom Styles area:

@media only screen and (max-device-width: 480px) {

    .bx-tl-item-activity span.sys-action-do-text {

        display: none;

    }

    .bx-tl-item-activity span.bx-menu-item-title {

        display: none;

    }

}