Hi, how to avoid copying empty cells when mass copying the whole column from another?
So this is the original tab:
Some days I don’t track my sleep so I leave the cells empty.
The colouring is done automatically with cell formatting based on the hour value.
This is what the total sleep formula looks like for reference, I don’t think it matters:
=IF(V21-U21=0 ,"",(IF((U21>=V21)=1,(1-U21)+V21,V21-U21)+IF((W21>X21)=1,(1-W21)+X21,X21-W21)))
=== MY PROBLEM: ===
In 2nd spreadsheet tab I use formula : $‘tab-name’$U1
so tab and cell using $ and I dragged that across.
But its copying EMPTY cells as 0 time value. These are DATE formatted cells.
I want empty value to be empty white cell visually, not blue…
Here is my conditional formatting by the way I tried to make it white using that but unable to overwrite?
- I created formatting so if value is 00:00 hours its white text on white background.
– I applied this to both original tab and the tab that copies it live
These are the other formatting I use:
So I apply a background colour using style based on value of the time of day.
I used “0<=Hour” in the first one, so I log time sleep time AFTER midnight it turns blue. In LibreCalc 24:00 time is the same as 0. Or 00:00. Later I have the same colour applied from 8pm to “hour<24”.
Still not working. The cells in the2nd TAB that copies cells live still shows 00:00 hours in blue for empty cells…
I tried changing my conditional formating from “0<=HOUR(U5)” to absolute value of a cell that I set as 00:01 which means 1 minute past midnight , like : " $‘1’.$U$4<HOUR(U5) " ( and U4 is 00:01 set as time)
still not working, unable to overwrite to make 00:00 hours invisible in the second tab.
Any ideas? Let me know if not clear, I can make a video and link it on youtube or reword this. Many thanks in advance, I appreciate your help 
Version: 7.3.7.2 / LibreOffice Community
Build ID: 30(Build:2)
CPU threads: 16; OS: Linux 6.5; UI render: default; VCL: gtk3
Locale: en-GB (en_GB.UTF-8); UI: en-GB
Ubuntu package version: 1:7.3.7-0ubuntu0.22.04.4
Calc: threaded
