I found that GIMP have plugins and tools that I think they don’t exist. I will stay with GIMP! Thanks for all recommendations and tips about gimp!
Tips I learned:
Hold shift to make straight line
There are hundrents off plugins for everything you like such as isometric grid
GIMP is still one of the best paint tool for game graphics for free
you can ...
Things (https://culturedcode.com) is a simple yet extremely powerful task manager for macOS and iOS. It offers automation with the Things ULS scheme (https://culturedcode.com/things/support/articles/2803573/), where you can create lists you need again and again.
The combination of Python/Jupyter/Pandas and graphing suites such as HoloViz should give you what you need with minimal coding and good interactivity.
You can get the full installation in a few simple steps:
Install Anaconda or Miniconda if you don't have it already
Open the conda prompt and
conda create -n holoviz python=3.7
conda activate holoviz