I started playing Minecraft again and wanted to install singleplayer commands. That's just not possible. I play on version 1.3 and 1.3.2 I do a lot with Redstone in the creative and some things you just have to copy… Entities such as an adder remain mostly the same and you need many. With the single player commands you could select the part with the wooden ax and save it as a schematic. If spc really was not updated anymore, is there a comparable mod? Copy, paste and change blocks in the selected area would be the most important thing.
I remember playing on Minecraft 1.6. Do we move backwards in time or did I swap something?
How do I know if I play on the java or bedrock version?
Worldedit
Have a look at a YT tutorial
Get worldedit PS: (not meant bad) in your knowledge you should rather stop using minecraft xd
Single Player Commands has not been updated for years. You are looking for World Edit.
"I work a lot with Redstone in the creative and some stuff you just have to copy…"
This works, however, without extra mods. Minecraft now has its own commands for. Just look into the wiki.
"I remember playing on Minecraft 1.6, is it moving back in time or did I swap something?"
That will probably have been the beta 1.6. Meanwhile it is the full version 1.13.2.
The beta 1.6 is already 8 years ago.
"How do I know if I play on the java or bedrock version?"
If you download it from http://www.minecraft.net/...ecraft.net it is the java edition. If you get them from the Windows 10 Store, it's the Bedrock Edition.
You did not know anything at the beginning. You have to learn everything somehow. Your parents did not even see your first steps and said "we leave that, the better wheelchair"