With the module “Tour UI”, I created a custom block to launch “Tour” manually, with the following code :

<a class="btn btn-success btn-sm" href="/?tour"><i class="fa fa-compass fa-lg"></i> Visite</a> 

I replaced this module with “D8: Bootstrap Tour”. When should I replace in my customize block to run “Tour” ?

Here is the code provided by the developer of the module :

<script> var tourObject = drupalSettings.bs_tour.currentTour; if (tourObject && tourObject._options.steps.length) {   // stop the tour.   tourObject.stop();   // start the tour.   tourObject.start(); } </script> 

Here is the content of my current block :

<a class="btn btn-success btn-sm" href="/?tour"><i class="fa fa-compass fa-lg"></i> Visite</a>  <script> var tourObject = drupalSettings.bs_tour.currentTour; if (tourObject && tourObject._options.steps.length) {   // stop the tour.   tourObject.stop();   // start the tour.   tourObject.start(); } </script> 

And here is the question asked on drupal.org (see comment #3) :

https://www.drupal.org/project/bs_tour/issues/2933276#comment-12399466