Is there a way to change default extension for an empty text file in PCManFM

I am using PCManFM 1.2.5 on XUbuntu 18.04 LTS. Currently when creating a new text file i get a creation window in the following form:

I would like to change the default extension from txt to text, since i believe that the whole 8.3 is a legacy that should be avoided where possible.

PCManFM 1.2.5 in Lubuntu 18.04 – custom command to batch rename all files in dir incl. subdir to subdir001, 002,

PCManFM 1.2.5 in Lubuntu 18.04 here.

want to add a custom command to right click menu to batch rename all files in the selected dir, including all files in all subdirs, to subdir001, subdir002, …

For example, if a directory x has subdirs abc and def containing files a1.mp3, a2.mp3, a3.mp3 each, I want the files in abc to be renamed abc001.mp3, abc002.mp3, abc003.mp3, in the same order. Same for the def dir, except to def001.mp3, etc…

How do I do this? I was searching for solutions, but they all seem to be PCManFM version dependent.

Ubuntu remembers every drive ever connected and every dvd ever inserted and PCmanFM shows it in folder panel

I am using PCManFM 1.2.5 as file manager on Ubuntu 18.04.2. When I go to my media folder, there I find listed the names of every external drive I ever connected and every disk I ever inserted in my dvd drive and even for my WLAN stick a separate entry for every time I connected it to the computer. How can I get Ubuntu to empty this list daily or forget about the devices as soon as they get disconnected?

How to hide progress bars in PCManFM 1.2.5?

I am having some problem with the PCManFM on my Lubuntu 18.04LTS. The “Copying Files” progress bar always appears on top of the viewer so everytime I want to navigate through the files I need to move it out the way, it won’t let me hide it without hiding the viewer. I have my own reason that I need to search through the files while transfering files via FTP.

Since I don’t have much experience with linux I don’t know if there is any command or scripts that can do the job eventhough I would like to learn more about it. If it is just the nature of this FM I might consider changing to another lightweight one.

Cannot execute PCManFM from the program’s menu

I recently noticed that when I click on the file explorer (PCManFM) icon in the program’s menu, the program doesn’t start.

I ran the system’s update to check if the updates would fix the issue, but nothing changed.

I would like to know how can I check which command line is the menu calling, or how can I execute the software from a terminal, just to check if the issue is with the menu link of the software itself.