memtest in dram caluclator

Hello, so as my title said a bit, in Ryzen Dram Calculator there is a Memtest, with it you can test memory errors, etc, so I have 5600X = 12 Thread CPU, and when I need to test with it, I have to open 12 tabs separately and add 1024 MB in each of them to test my RAM with every single thread, I...