You don´t see right menu (for top right corner) in Bricscad 2020.
That feature is called Prompt Menu and it can you can enable it by setting PROMPTMENU == 3 (for top right corner) or other values. Please check this in Settings dialog.
New current value for PROMPTMENU (0 to 5) <0>: 1 – 5
- 1 month ago
BricsCAD commands often provide several options. These options appear in the status bar or command bar and also in a prompt menu, which initially displays at the top right corner of the screen. Choose an option by clicking in the prompt menu. E.g. click Radius in the PLINE prompt menu to define the radius of the current arc segment of a polyline.
|Polyline prompt menu when drawing line segments||Polyline prompt menu when drawing arc segments|
To control the display of prompt menus
Whether a prompt menu displays and its location is controlled through the PROMPTMENU system variable and the PromptMenuFlags user preference.
Type promptmenu in the command bar, then type a value of 0 to 5 (see table below) and press Enter.
|0||No prompt menus|
|1||Display prompt menu at user defined location (*)|
|2||Display prompt menu at top left corner|
|3||Display prompt menu at top right corner|
|4||Display prompt menu at bottom left corner|
|5||Display prompt menu at bottom right corner|
(*) You can move the prompt menu by dragging it; future prompt menus will appear where you last placed it.
|NOTES||The PROMPTMENU system variable is saved in the registry and therefore applies to all drawings.The PromptMenuFlags user preference has three options:1 = Show hidden options. Hidden options display in italics.2 = Hide the prompt menu when a command prompts to select entities.3 = Disable selection options in the prompt menu.|