Edit file File name : editor.css Content :.wp-block-group .block-editor-block-list__insertion-point{ left:0; right:0; } [data-type="core/group"].is-selected .block-list-appender{ margin-left:0; margin-right:0; } [data-type="core/group"].is-selected .has-background .block-list-appender{ margin-bottom:18px; margin-top:18px; } .wp-block-group.is-layout-flex.block-editor-block-list__block>.block-list-appender:only-child{ gap:inherit; pointer-events:none; } .wp-block-group.is-layout-flex.block-editor-block-list__block>.block-list-appender:only-child,.wp-block-group.is-layout-flex.block-editor-block-list__block>.block-list-appender:only-child .block-editor-default-block-appender__content,.wp-block-group.is-layout-flex.block-editor-block-list__block>.block-list-appender:only-child .block-editor-inserter{ display:inherit; flex:1; flex-direction:inherit; width:100%; } .wp-block-group.is-layout-flex.block-editor-block-list__block>.block-list-appender:only-child:after{ border:1px dashed; content:""; display:flex; flex:1 0 40px; min-height:38px; pointer-events:none; } .wp-block-group.is-layout-flex.block-editor-block-list__block>.block-list-appender:only-child .block-editor-button-block-appender,.wp-block-group.is-layout-flex.block-editor-block-list__block>.block-list-appender:only-child .block-editor-inserter{ pointer-events:all; } Save