How to load image and arrange these pictures in rows and columns

[#1]

I want to finish below jobs with JSL's help.

1. Load some pictures into a display box, and arrange these pictures in rows and column with loop function, for exaple, 3 rows and 3 columns, total 10 pictures as below picture shown.

2. Then I need to save all the pictures within the display box to one image and save it on my computure for use.

3. I may need to adjust the size of the pictures shown on the display box;

4. In below picture, box in blue indicates the pictures loaded from my computure or copied from the graph builder during processing steps. Display pox in pink means some display box container, which is easy for me to save this entire picture box with all the pictures into one images. 

in the image

[#2]

Could this topic be enough to help you with this Open and add 4 JPEGs into a 2x2 window 

[#3]

It is just what I am looking for.Thank you, Appreciate you help.