Fedora 30 ( kde ) - LIVE - resize ramdisk

How can the ramdisk size of Fedora ( 30 ) ( kde ) be changed ?

Currently I guess it always defaults to about half of the available memory.

However, currently, I would like to treat temporary “disk” space against RAM useable by applications in order to be able to install more applications during a LIVE SESSION without (!) installing fedora to disk.

This is, I would like to resize the ramdisk which is created during a LIVE SESSION by fedora live .

Thanks for hints and answers… ( even a direction where I can start to do my own research is very welcome, so please post as soon as you have a rough idea what might perhaps work,… )