Hi Dan @shotcut, thank you. Actually I owe you an apology; you mentioned this in a thread way back in August and kindly gave instructions:
Somehow I didn’t clock then, that if I remove the text from a Text:simple filter, then save as a preset, when applying the preset to other text clips that the text content will remain the same on the “pasted” clips. I apologize for being dense - your instructions were clear!
So this will be a really useful technique - although for a whole row of text clips produced via Generate Text On timeline I will still have to click on each clip, and then another twice - once to select the “preset” option to initiate the drop-down, then again on the preset itself.
Not ideal, but it beats changing all the attributes individually! So thanks.
For me though, I’m pretty sure I will be able to concoct an Auto Hotkey script that automates this for a whole row of text clips, so I should soon be able to change a whole bunch by just pressing one hotkey combination!! Wooo! 
I’ll look into it.
BUT - I think I found a bug. In my limited testing, I found that the font-size is not saved as part of the preset.
Here’s what I did:
- Created a text clip with default font etc (Verdana) and text “Hello”.
- Added to the timeline and copied this clip to create two clips on the timeline.
- Selected the first clip, and changed the font to Segoe, and the font size to 100px.
- Changed a few other attributes - position of the text, background colour etc.
- Removed the text.
- Saved as a preset and named it “Blank Segoe 100”
- Applied it to the second text clip.
Result: the text attributes were all updated, EXCEPT the font-size, which remained at 60 px.
I tried it with a few other fonts set to other font sizes (eg Sugarskin BTN Bold, 200px), plus a few others, and the “pasted” clip always seems to be 60px.
Is this a bug?