f_reactable <- function(daten, coldefs = NULL, selection = "single", defaultSelected = NULL, hoehe = NULL) {
  reactable(
    daten,
    selection = selection,
    defaultSelected = defaultSelected, # Ermöglicht das Wiederherstellen der Auswahl
    pagination = F,
    defaultPageSize = 17,
    showPageSizeOptions = TRUE,
    filterable = TRUE,
    highlight = TRUE,
    height = hoehe,            # <--- FIXIERT DEN HEADER und macht den Body scrollbar
    bordered = TRUE,
    striped = FALSE,
    compact = TRUE,
    # Styling
    theme = reactableTheme(
      highlightColor = "#e6f7ff", # Etwas dezenter als knallgrün, optional
      # borderColor = "#dfe2e5",
      rowSelectedStyle = list(backgroundColor = "#98F5FF")#
    ),
    rowStyle = list(cursor = "pointer"),
    onClick = "select",
    columns = coldefs
  )
}