[Q] A way to automate a call merge on android?

[AC Question]

Hello people of the internet!

I have a simple question..
Is there any way I can automate call merge on android?

So basically as you probably know, driving in the UK whilst on your phone is illegal.
I'm always on a hectic schedule and the only chance I get to call my collegues is when i'm in the car..

So... when I open my phone. I need to call contact 1, then click add call, then call contact 2. Then merge call, then add call then add contact 3 etc etc.
Sonetimes i need to call all 6 people.

Is there an app that I can set to... add call, merge, add call, merge?

I would really appreciate anyone willing/trying to help.

Thanks