tabPanel("Open MSnset file",
    value = "openMSnsetTab",
    tagList(
        uiOutput("openMSnsetScreen"),
        actionButton("loadMSnset", "Load MSnset", class = actionBtnClass),
        # uiOutput("updateDesign")
        p("Once the 'Load' button (above) clicked, you will be automatically
           redirected to Prostar home page. The dataset will be accessible
           within Prostar interface and processing menus will be enabled.
           However, all importing functions ('Open MSnset', 'Demo data' and
           'Convert data') will be disabled (because successive dataset loading
           can make Prostar unstable). To work on another dataset, use first
           the 'Reload Prostar' functionality from the 'Dataset manager' menu:
             it will make Prostar restart with a fresh R session where import
             functions are enabled.")
    )
)
