The way i got it to work is made the timed message !phrase so it runs the !phrase command which is The phrase of the day is: @readfile@[Phrase\Phrase.txt] set to only run as bot or streamer assuming you don't want other people using it. Then in C drive > DeepBot - Twitch Streamer Assistant > custom logs > Phrase > Phrase.txt i have put the random phrases one each line.
eg.
Hello what a beautiful day is today!
Pie is nice
Something something day
Hope i understood correctly 
This is exactly what I'm looking for! I'll give it a shot in a moment. Thanks a lot!
EDIT: Unfortunately same problem appears here. All I get in chat is:
The phrase of the day is: @readfile@[Phrase\Phrase.txt]
Looks like variables and Built-In Commands are ignored in timed messages.
BTW I can not see any option to set timed msg to be run by Bot or streamer only.