As usual, perhaps I was too terse when such was announced for v2.3 in the change log:
* New tcz2ram.flg placed in your tce directory will cause all tczs to be loaded into ram.
* New tcz2ram.lst placed in your tce directory will result in those tczs specified in such be ram loaded.
You can start your migration to all tczs now.
If you wish all tcz2 to be loaded into ram, as current tces do then place the flag tcz2ram.flg in your tce directory. To make such a flag simply
touch /path/to/your/tce/tcz2ram.flg
If you are currently using a mix of tces and tcz then to move to all tczs with the same functionality then simply list each tcz in a simple ascii text file name tcz2ram.lst. Just use any editor to create/make/edit this file in your tce directory.
Note using appbrowser in v2.3, install button on a selected tcz not only loads to ram but also adds the selected item to tcz2ram.lst.