Method 1: Selecting multiple files and renaming:
Select the files you want to rename using ctrl+click. Now right click on one of the files you have selected and give the name you want to keep common in all the files. Give the file desired name and all the files will be named with the prefix of the given name. In this examples files are named with Test and as you can see files are named successfully. This is how you have renamed files with the same prefix and numerical prefix. Now if you want to attach them or select them together you can sort files with name and renamed files will be together.
Method 2: Using Tab key to rename multiple files:
If you will go for this method, you do not need to individually right click and select rename for each file
Collect all the files you want to rename in a separate folder. Now right click on one file, select rename and give the desired name. Also, copy the name you are giving to the file. After giving the desired name to the file do not press enter here you must press Tab Name of the next file will be selected. Paste the copied name here and add some suffix