i have few suggestions.
1st. Use Escape skill, it shows in skills and teleports you to nearest tower.
2nd. Use aghation, take or create custom aghation add all tp skills to 1 aghations
3rd. Make bunch of custom aghations. Make custom html line and multysell into gatekeeper. take 1 primary aghation and in mulltyshop you can exchange it to same but diff id that have another tp skill
4th. Take item, like tutorial book, change html add tp buttons, so players open book and they can choose where to tp from anywhere.