AEM6.4 Touch UI RTE - How to Restrict author to enter only 2 lines

[#1]

Hi,

we are using AEM 6.4 RTE plugin for paragraph in touch ui. How do i restrict author to enter only 2 lines of paragraph? RTE should not accept paragraph more than two lines.

[#2 · Accepted solution]

Write a custom validation for same, check this example - RTE Validation for AEM 6.2, The Right Way