Tin Whistle Tablature Plugin
This plugin adds tablature (fingering) diagrams to a tin whistle staff in a MuseScore score. The version for MuseScore 2 will adjust for tin whistles tuned to D, C and Bb, and at present the version for MuseScore 3 does not do this and assumes a tin whistle tuned to D. This will be fixed once the version 3 plugin API is extended.
This plugin relies on a font being installed, which is not included in this download but can be obtained from Blayne Chastain's site: https://www.blaynechastain.com/wp-content/uploads/TinWhistleTab.zip
The version for MuseScore 2 will check that the staff is for a tin whistle and adjust the tab diagram position for the lowest note possible. I have not been able to repeat this yet for MuseScore 3 so it just assumes that a whistle tuned to D is used - this being the most common - but this will be fixed sometime soon.