How to "paste source into target segment" while automatically replacing Multiterm matches with the corresponding target term

Hi, I am translating a math text where many of the Math terms are kept in a Multiterm 1:1 glossary (that is, for each English term there is only one Spanish translation). I would need something that Wordfast already did about 10 years ago: Copy source into target segment BUT WHILE replacing at the same time all the words found in the glossary with their corresponding Spanish (i.e., target-language) version.

Why? Because I need to copy source into target segment due to the high amount of tags I have, but I would like to avoid replacing each word in the glossary using CTRL+, (if possible).

 

That is, if my sentence is

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Find the gradient of the function f(x)=x^3-2x+1 at x=2 and write the equation of the function's asymptotes.

 

and I have in my glossary gradient= pendiente; function= función; find=halle; write= escriba; equation=ecuación; asymptote= asíntota

I would like the fancy-copy-source-into-target to paste

Halle the pendiente of the función f(x)=x^3-2x+1 at x=2 and escriba the ecuación of the función's asíntota.

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Any help?? If Champollion could do it on his own, I bet you can too. :)

Best regards,

Esther