"btn btn-danger mr-1" *ngIf="authenticationService.isLoggedIn() " type="button" (click)="executeBatchDelete()" [disabled]="!massDeletion.showCurrentSelected().length">
              <fa-icon [icon]="faTrash" size="2x"></fa-icon> <strong>Batch Delete</strong>
            </button>
            <button class="btn btn-primary" (click)="acc.isExpanded('display-panel')? acc.collapse('display-panel'): acc.expand('display-panel')" placement="left"
                    ngbTooltip="Number of spectra retrieved in this 