Introduction: In this blog, we will see how we can enable/disable or change the visibility of the form control in interaction class. Standard behavior of the form, system does not allow us to write code on form which comes under form template -> List page It Seems like below attached image (Here we will consider form VendTableListPage. Property of form as shown below) Each ListPage form consisting with an interaction class as shown in property, Here it is VendTableListInteraction. Each interaction class has one override method which is selectionchanged() Solution:  Here we will override the method of selectionchanged() as below [ExtensionOf(classStr(VendTableListPageInteraction))] final class VendTableListPageInteractionCFSJSClass_Extension public void selectionChanged() { next selectionChanged(); //for visibility this.listPage().actionPaneControlVisible(formControlStr(VendTableListPage, ), false); //for enable/disable this.listPage().actionPaneControlEnabled(formControlStr(VendTableListPage, true); } For all other ListPage, we can go through interaction class. For reference, go through below mentioned classes: AgreementListPageInteraction BankDocumentTableListPageInteraction CatProcureOrderListPageInteraction CatVendorCatalogListPageInteraction CustBillOfExchEndorseListPageInteraction CustomsExportOrderListPageInteraction CustPDCListPageInteraction CustPDCSettleListPageInteraction CzCustAdvanceInvoiceListPageInteraction CzVendAdvanceInvoiceListPageInteraction EcoResCategoryHierarchyPageInteraction EcoResProductListPageInteraction EmplAdvTableListPageInteraction EntAssetObjectCalendarListPageInteraction EntAssetWorkOrderPurchaseListPageInteraction EntAssetWorkOrderPurchReqListPageInteraction EntAssetWorkOrderScheduleListPageInteraction EPRetailPickingListPageInteraction EPRetailStockCountListPageInteraction EximAuthorizationListPageInteraction EximDEPBListPageInteraction EximEPCGListPageInteraction GlobalAddBookListPageInteraction HcmCourseAttendeeListPageInteraction HcmWorkerAdvHoldTableListPageInteraction InventBatchJournalListPageInteraction InventDimListPageInteractionAdapter JmgProdStatusListPageInteraction JmgProjStatusListPageInteraction PCProductModelListPageInteraction PMFSeqReqRouteChangesListPageInteraction ProdBOMVendorListPageInteraction ProdRouteJobListPageInteraction ProdTableListPageInteraction ProjForecastListPageInteraction ProjInvoiceListPageInteraction ProjInvoiceProposalListPageInteraction ProjProjectContractsListPageInteraction ProjProjectsListPageInteraction projProjectTransListPageInteraction ProjUnpostedTransListPageInteraction PurchCORListPageInteraction PurchCORRejectsListPageInteraction PurchLineBackOrderListPageInteraction PurchReqTableListPageInteraction PurchRFQCaseTableListPageInteraction PurchRFQReplyTableListPageInteraction PurchRFQVendorListPageInteraction_PSN PurchRFQvendTableListPageInteraction PurchTableVersionListPageInteraction ReqTransActionListPageInteraction ReqTransFuturesListPageInteraction ReqTransListPageInteraction RetailOnlineChannelListPageInteraction RetailSPOnlineStoreListPageInteraction ReturnTableListPageInteraction SalesAgreementListPageInteraction SalesQuotationListPageInteraction SalesTableListPageInteraction SysListPageInteractionBase SysUserRequestListPageInteraction UserRequestExternalListPageInteraction UserRequestListPageInteraction VendEditInvoiceHeaderStagingListPageInteraction VendNotificationListPageInteraction VendPackingSlipJourListPageInteraction VendPDCListPageInteraction VendPDCSettleListPageInteraction VendProfileContactListPageInteraction VendPurchOrderJournalListPageInteraction VendRequestCategoryListPageInteraction VendRequestListPageInteraction VendRequestWorkerListPageInteraction VendTableListPageInteraction VendUnrealizedRevListPageInteraction Thanks for reading !!!