抱歉回覆這麼晚。就 TeX 而言,有一個可以給出的指令:
\NumericCallers{f}(或 {x})。然而,這似乎只有在沒有定義任何「列出」的標記時才有效,而從使用者介面來看,這似乎是不可避免的。在一個專案中,我看到:
\AutoCallers{f}{*,†,‡,¶,§,⁜,⁑,※,⁂}
\AutoCallers{x}{a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,θ,u,v,w,x,y,z,ʒ}
大約在 .tex 檔案的第 170 行,這比包含 ptxprint-mods.tex(大約在第 488 行)要早很多。
因此,我們可以「取消設定」自動標記列表,然後數字標記應該就能正常工作:
\expandafter\let\csname callers-x\endcsname\relax
\NumericCallers{x}
它確實有效:

但是(至少在不更改字體的情況下),如果問我的話,這些標記最終會顯得有點令人困惑:

(如果你想覆蓋腳註,請將 callers-x 和 {x} 改為 callers-f 和 {f}。)
Sorry for such a late reply. In terms of the TeX, there is a command that can be given:
\NumericCallers{f} (or {x}) However, it only seems to be effective if there has not been any ‘listed’ callers defined, and that seems to be unavoidable from the user interface. For one project, I’m seeing:
\AutoCallers{f}{*,†,‡,¶,§,⁜,⁑,※,⁂}
\AutoCallers{x}{a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,θ,u,v,w,x,y,z,ʒ}
around line 170 in the .tex file, which is a long way before ptxprint-mods.tex is included (around line 488).
We can, therefore, ‘unset’ the list of autocallers, and then the numeric callers should work:
\expandafter\let\csname callers-x\endcsname\relax
\NumericCallers{x}
And it does:

But (at least with no change in font) the callers end up a bit confusing, if you ask me:

(change the callers-x and {x} to callers-f and {f} if you want to override footnotes.)