How to launch camera in Pro Mode on OnePlus 5/5T/6/6T

OnePlus 5

Oneplus 5/5T/6/6T is among the fastest mobile devices on today's mobile market. This device has the highest value/price ratio based on its specs compared to flagship devices presented by top major brands. However, OnePlus has one weak link. Camera performance in low light conditions. nobody is expecting mobile devices perform as DSLR ot mirrorless cameras, however, OnePlus software is having oil painting effect when process images taken with poor light. Besides recommendations of using tripod, stabilizing hands and other tips, one of the most important tricks is using ProMode of the OP camera where you can control ISO, exposure, raw format option and shutter speed.
Sometimes it'sgetting annoying to open camera in default auto-mode and then slide menu up to switch to ProMode. Here are the steps to create a short cut to launching camera in ProMode. It was implemented and tested on OnePlus 5 (OxygenOS 5.1.4, Android 8.1.0).

How to launch OnePlus mobile phone in Pro Mode by default:
1. Find OnePlus camera app among your applications
2. long press on OP camera app icon will launch dialog menu (sub-menu) with option buttons to launch portrait mode, selfie mode, video, ProMode (see screen shot below).

3. Scroll down to ProMode
4. Hold down ProMode tab and drag it to your phone screen or any folder that you already created for your photo apps (see screen shot - second icon is PRO mode)

5. You are set. Test your new icon button to see that it launches OnePlus camera in ProMode