GS-Calc 19.2 has been released.

New features in GS-Calc 19.2:

  • A new list of recently used files and folders displayed as a separate split window. It displays file sizes,
    modification dates and states.
    You can assign one of many available built-in icons to each file or folder. Both lists (of files and folders)
    can include up to 50 items each and new items are added in a cyclic manner. Both lists can be locked
    to prevent any new additions or re-ordering.

https://citadel5.com/help/gscalc/ru_list1.png

The Default button above the lists opens a folder specified in the Settings > Options > General > Start Folder field.
If you want to restore the old short (icon only) Open button, in the settings.xml text
file change the line
0
to
1