Set Stamp Panel

// The default tabs
const tabs = [
  { type: 'custom', dataElement: 'IMPORT', text: 'Import' },
  { type: 'tab', dataElement: 'DYNAMIC' },
  { type: 'tab', dataElement: 'CUSTOM' },
]

// set up stamp panel tabs, the first one is import tab
// you can add panels.stamp.import in the translate file for localization
const customTabs = [
  { type: 'custom', dataElement: 'IMPORT', text: 'Import' }, // custom tab
  { type: 'tab', dataElement: 'DYNAMIC' },
  { type: 'tab', dataElement: 'CUSTOM' },
]

// setStampPanelTabs API can be used to set up the tabs in the stamp panel
instance.UI.setStampPanelTabs(customTabs)

// set up the active tab to IMPORT
instance.UI.setActiveElementTab('stampPanel', 'IMPORT')

// set up import stamps in the panel
instance.UI.setImportStamps(['base64 string'])

Import Custom Stamp

// Get the custom stamps in the stamp panel
instance.UI.getCustomStamps()

// Add custom stamp to the stamp panel
instance.UI.addCustomStamps('base64 string')

// You can also set the custom stamps.
instance.UI.setCustomStamps(['base64 string'])