The two probably most important features in multitail (via pantz.org).
To pause all the logs press the “p” key.
To use the log windows scroll back feature press the “b” key and select the log you want to scroll back through.
Maybe you will need those commandline options
-mb x. Set scrollback buffer size (in bytes, use xKB/MB/GB).
-M nlines Set the buffersize on ALL following files.