@acer Thank you. Late last night I found another way. Which is what I what to achieve. Could you comment on potential pitfalls incase I am missing something.
 

Download 2026-03-26_Q_Module_Generic_Variables-R1.mw

Can you see where the shortcut points to for the "old/former" interface.  The see if you can find a similat executable in the Maple 2026 folders.

Edit:- for windows 10 you can probe the shortcuts in the start menu from here.

C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Maple 2024

@dharr  @sand15  Thank you. Bothe answere are very helpful. And I like the link to @acer  comment.

I am getting the same error. What browser are you using? I am using edge on win10 & 11.

I have also noticed the site has been wery slow and hangs a lot since at least mid December. Has anyony else being experiencing this?

edit:- I get this message a lot

@minhthien2016  Like this

sort((x - 1)^2 + (y + 4)^2 + (z - 3)^2 - 56 = 0, [x, y, z])

(x - 1)^2 + (y + 4)^2 + (z - 3)^2 - 56 = 0

Would this help?

with(CurveFitting);

   [ArrayInterpolation, BSpline, BSplineCurve, Interactive, 
     LeastSquares, Lowess, PolynomialInterpolation, 
     RationalInterpolation, Spline, ThieleInterpolation]

@sand15 I see you are using an older version of Maple. In2024.2 this is the processing time.

memory used=69.41MiB, alloc change=0 bytes, cpu time=687.00ms, real time=745.00ms, gc time=0ns

You might get some help from the official Solidworks site or Cadmunity CADmunity 

@salim-barzani Thank you. I appreciate the acknowledgement.

  If an answer is liked/voted up by the OP, how about an astricks or some symbol appear automatically or the color change to say light blue for each answer liked by the Op.

@sand15 I only know this because I asked the same question a coulpe of years ago. 

@Scot Gould I had forgotten about that. I this you pointed this out to me or something similar about 6 months ago.

@acer I will use the 3rd option. I didn't know about andseq.  Sometimes the matrix elements can grow very large when radicals are involved.

@nm Thank you that works well.

@Christopher2222  That is really useful I am studying rotations SO(3) and I want to investigate to combination of different rotations.