It's like one of the most simplest bots ever.
Do your usual thing to launch your game+console.
Go into the boat of your desire.
Open the program but don't start it yet, bind the commands into the console which is already simple enough with copying and pasting. There's even an automatic bind with MHW's auto bind for you. Make sure your keyboard input is set on default on either mouse or keyboard and set it recognize keyboard mode if you have it on so that it'll least likely mess up the bot. Also make sure you don't have a weapon on.
Click the start program, get on the boat you want if you already hadn't, press INSERT.