How can I create data storage using clock component and display it in a table using calendar?

[ABG]

@Ela

What is best to do:

• use Table Arrangement with 50 rows
  (ABG: "Table Arr. is susceptible to copy/paste errors", ...can it be a problem for me?)
• use 50 Horrizontal Arrangements with the fixed length of Labels?

To display your data, you would need to build a table (list of lists) with your readings, one reading per row. I don't recommend displaying it all at once, unless you have an appetite for Javascript and html like in this approach: App Inventor Tutorials and Examples: Dynamic Table Layout | Pura Vida Apps from FAQ Section: Charts and Graphs

I personally favor using a small screen-sized fixed window of Horizontal Arrangements stacked in a Vertical Arrangement, with a thin vertical Canvas on the side for scrolling, and a global variable OFFSET (default 0) to hold how far down the aforesaid table is the section you are showing in the window.

I need sample data to make a demo of how to do this.

Can you gather a table of your readings (12 should be enough) and upload a csv file?