Portsdown 4 general info

[IZ7PDX]

I have recently assembled the Portsdown 4 on Raspberry Pi4 and I am very happy with the excellent work you have done.
I transmit with the Adalm Pluto and can receive very comfortably with the Minitiouner Pro v2 simply and quickly by selecting the commands on the 7 "touch display.
Now I can transmit in laptop without the use of PC and Windows, I transmit internal files like personalized monoscopes with QRZ but I have some general questions to ask:

1- Is it possible to insert several video files (for example "videox500ks.ts" ) recorded with certain SR parameters in the ripdatv/video/folder directory and then send it to Pluto for transmission after selecting it from the Portsdown menu?

2- In the same way it is possible to insert image files in the right directory (I find it convenient to use the FileZilla FTP client) and to select them from the "M3"> "Select: Test Card" menu, most likely the menus must be configured ( as I read in the info.txt file and in the testcard_config.txt file).
If I have not misunderstood if I want to insert a .jpeg image file of 720p format the card 720p be 1280x720 and have the same basic filename with w added.

3- In the same way, if I want to insert a 1920x1080p test card what can I do? Inside the directory pi \ rpidatv \ scripts \ images I have not found any test card of this format but in the Portsdown menu the 1080p format exists!

I have recently been exploring all the functions and I really like it very much but the questions are still many and I proceed with caution ...
Best regards to all ... 73 de Luigi IZ7PDX.