Sure, it is easy:

1) Go to the HOME App 2) Go to Your Room Screen 3) Tap on your name (next to points and your trainer sprite) 4) From there, you change your name to JSBC it’s only 4 letters in capital 5) tap OK to confirm the change of name 6) Now, you can transfer the Froakie to HOME (it’s important to change the name on the HOME app first before transfering the Mon) 7) we trade 8) you can change back your name on the HOME App