Yes indeed especially for me at an age of 66 to be in charge of high tech items i.e. computer and presentation. Fortunately I used to computer and related work for many years. So it is just a matter of refresh my skill
The convention is over today and thank god, it was done very smoothly with hiccups on the high tech screen but during lunch hour. Luckily it was repaired before the lunch hour resumed.
Thanks can cheers