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November 8, 2013
As I already said, "... you cannot have more than 1 timer procedure running at a time." There is no way to force excel to accept more than 1 code in the same time.
When opening a new topic, please try to describe the problem and attach a sample file, it's the best way to get a fast answer. There are people trying to help, but they have no idea what you need help for.
I guess there can be alternatives, if you need a timer on multiple rows, all you need is to set a start column and a Stop column. A simple code for right click event will write the start time in Start column, a right click in Stop cell will write the current day-time in stop column, and the difference between start cell and stop cell.
Anyway, all depends on your structure and needs, so without a sample file and description, we are blindly imagining things.
February 16, 2021
As I was busy to develop a double timer in Excel I found your question. I'm not sure if you've already found a solution but it's free to use mine.
You may have to change some vba code to let it work for you. No audio attached.
It works on both 32 and 64 bits Windows.