" styleClass="customPstage fix-selectOneMenu" showCheckbox="true">
                                <f:selectItems value="#{conventionController.rechEtapes}" />
                            </p:selectManyMenu>
                        </t:htmlTag>
                    </t:htmlTag>
                </p:fieldset>

                <p:fieldset
                        legend="#{msgs['CONVENTION.ENSEIGNANT']}"
                        toggleable="true"
                        styleClass="mt10"
                        r